Chapter 15.1
Party and place
Across 12 policy issues, Democrats and Republicans in the same kind of deep county differ by 43.1 points in the share taking the Democratic side, 7.6 times the 5.6-point difference between deep-blue and deep-red counties within a party.
DraftFigures and numbers may change as the analysis is rebuilt.what is still being checked
Still open: the place gap is measured for the county only, and a version at the ZIP code level has not been built. Support by county margin is drawn for a subset of the issues, without an issue selector.
The party gap and the place gap are two differences in the share of respondents who take the Democratic side of a policy question, measured in pointsPercentage pointThe unit for the difference between two percentages. A change from one share to another is stated in points, not in percent, so that absolute and relative change are not confused.. The party gap compares Democrats with Republicans who live in the same kind of county. The place gap compares members of one party who live in deep-blue counties with those who live in deep-red counties, where a deep county has a two-party presidential margin of 2020 points of two-party marginEstimanda county is deep red or deep blue at this margin or moreWeightsnone (count)Populationcounty classificationPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study points or more toward one party. Averaged over 1212 policy questionsEstimandcount of issuesWeightsnone (count)Populationthe CES policy questions used in the chapterPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study issues, the party gap is 43.1 (95% CI 41.8 to 44.5)43.1 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandaverage over the issues of the party gap: Democratic minus Republican share taking the Democratic side, averaged over deep-red and deep-blue countiesInterval95% CI 41.8 to 44.5n118,638Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study points and the place gap is 5.6 (95% CI 4.7 to 6.6)5.6 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandaverage over the issues of the place gap: deep-blue minus deep-red county share taking the Democratic side, averaged over Democrats and RepublicansInterval95% CI 4.7 to 6.6n118,638Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study points, a ratio of 7.6 (95% CI 6.4 to 9.3)7.6 ratio (party gap divided by place gap)Estimandaverage party gap divided by average place gapInterval95% CI 6.4 to 9.3n118,638Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study, and the party gap is larger than the place gap on every issue. Before adjustment, the interval for the place gap lies above zero on all 1212 issuesEstimandcount of issuesWeightsnone (count)Populationissues whose average place gap has an interval above zeroPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study issues, so the place gap is small and not zero. The section on Republican and Democratic place gaps reports how many of them shrink when respondents are compared within the same state.
The data are interviews from the Cooperative Election Study (CES) in 2013 to 2021, 333,335333,335 respondentsEstimandcount of respondentsWeightsnone (count)PopulationCES respondents interviewed in 2013 to 2021 with a matched county and a positive weight, in any party group or nonePeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study of which could be matched to a county, and 320,988320,988 respondentsEstimandcount of respondentsWeightsnone (count)PopulationCES respondents interviewed in 2013 to 2021 with a matched county, a positive weight and one of the five party groupsPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study of those belong to a party group used in this chapter. Each is matched to the two-party marginCounty two-party marginThe Democratic vote minus the Republican vote, divided by the sum of the two, so a positive value is a Democratic lead. Votes for other candidates are left out. of the respondent's county in the most recent presidential election, counting the election of the interview year, and every estimate uses survey weightsSurvey weightsNumbers that scale each respondent so the sample matches the population on known traits such as age, race, education and region. A weighted average counts a respondent with a large weight for more than one with a small weight.. The main comparison of party and place uses the 2013 to 2021 interviews. The trend across presidential cycles in Figure 8 uses the longer source window of 2006 to 2021, so it includes surveys that the main comparison leaves out.Unless stated otherwise, every intervalConfidence intervalA range around an estimate that would contain the true value in 95% of repeated samples if the sampling model held. The book reports 95% intervals unless it says otherwise. in this chapter is a 95% interval from a bootstrap that resamples whole states (5050 clustersEstimandnumber of resampling clustersWeightsnone (count)Populationstates and the District of Columbia with matched respondents, Alaska excludedPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study clusters, 2,0002,000 replicatesEstimandbootstrap replicatesWeightsnone (count)Populationcluster bootstrapPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study replicates). The exceptions and the method are in the methods note at the end of the chapter. The Chapter 1.4, Cohort change in partisan sorting chapter follows the growth of party differences within birth cohorts, and this chapter asks how much of what remains depends on where a respondent lives.
Respondents are Democrats or Republicans by the three-point party question, so leanersPartisan leanerA respondent who first says they are independent but, when asked, says they lean toward one party. Most figures group leaners with the party they lean toward, and each chapter says which grouping it uses. belong to neither group. Each issue is a yes-or-no question, coded so that 100100 pointsEstimanddefinition of the scaleWeightsnone (count)Populationthe top of the scale on which every issue is coded, where 100 is the side that Democrats take more oftenPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study is the side that Democrats take more often: support for an assault weapons ban, for example, and opposition to repealing the Affordable Care Act (ACA). The party gap on an issue is the Democratic minus Republican difference in the share taking that side, averaged over deep-red and deep-blue counties, and the place gap is the deep-blue minus deep-red difference in that share, averaged over Democrats and Republicans.
The party gap exceeds the place gap on every issue
Figure 1 shows both gaps for each issue. The party gap runs from 13.3 (95% CI 12.0 to 14.9)13.3 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandsmallest party gap over the issues (universal background checks)Interval95% CI 12.0 to 14.9n96,237Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study points on universal background checks to 64.1 (95% CI 62.5 to 65.8)64.1 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandlargest party gap over the issues (border wall)Interval95% CI 62.5 to 65.8n60,875Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study points on spending for a border wall. The place gap runs from 2.1 (95% CI 0.9 to 3.1)2.1 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandsmallest place gap over the issues (universal background checks)Interval95% CI 0.9 to 3.1n96,237Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study points on background checks to 12.0 (95% CI 9.2 to 14.6)12.0 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandlargest place gap over the issues (abortion)Interval95% CI 9.2 to 14.6n113,602Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study points on abortion. On no issue do the intervals for the two gaps touch.
Figure 1
On every issue the gap between parties is larger than the gap between deep-red and deep-blue counties
Gap in the share taking the Democratic side, in points, by issue; Democrats and Republicans in deep counties; CES survey years 2013 to 2021
- Place gap
- Party gap
Show data
| Issue | Democratic side of the question | Survey years | Party gap | Party gap, low | Party gap, high | Place gap | Place gap, low | Place gap, high | Ratio | Smallest group, n |
|---|---|---|---|---|---|---|---|---|---|---|
| Assault weapons ban | Support an assault weapons ban | 2013 to 2021 | 41.9 | 40.3 | 43.8 | 7.5 | 6.1 | 9.0 | 5.6 | 16,440 |
| Background checks | Support universal background checks for gun buyers | 2013 to 2021, not 2020 | 13.3 | 12.0 | 14.9 | 2.1 | 0.9 | 3.1 | 6.5 | 13,375 |
| Concealed carry | Oppose easier concealed carry | 2013 to 2021 | 38.8 | 37.1 | 40.7 | 4.8 | 3.4 | 6.4 | 8.1 | 16,452 |
| Border security | Oppose more spending on border security | 2013 to 2021, not 2018 | 40.2 | 38.6 | 42.0 | 5.3 | 3.7 | 6.7 | 7.6 | 13,428 |
| Path to legal status | Support a path to legal status for undocumented immigrants | 2013 to 2021, not 2018 | 38.7 | 36.9 | 40.3 | 4.1 | 2.6 | 5.8 | 9.6 | 13,422 |
| Border wall | Oppose spending on a border wall | 2017 to 2021, not 2019 | 64.1 | 62.5 | 65.8 | 4.1 | 2.9 | 5.3 | 15.5 | 8,257 |
| Gay marriage | Support legal gay marriage | 2013 to 2016 | 36.4 | 33.6 | 39.3 | 10.2 | 6.6 | 13.7 | 3.6 | 7,161 |
| Repeal the ACA | Oppose repealing the Affordable Care Act | 2013 to 2021 | 57.2 | 55.8 | 58.8 | 4.2 | 2.8 | 5.4 | 13.7 | 16,459 |
| EPA regulates CO2 | Support letting the EPA regulate carbon dioxide | 2014 to 2021 | 44.4 | 42.3 | 46.5 | 5.2 | 3.5 | 6.9 | 8.6 | 15,459 |
| Abortion legal | Support always allowing abortion as a matter of choice | 2014 to 2021 | 46.5 | 44.7 | 48.7 | 12.0 | 9.2 | 14.6 | 3.9 | 15,818 |
| Medicare for All | Support Medicare for All | 2018 to 2021 | 51.3 | 49.3 | 53.6 | 4.2 | 1.7 | 6.4 | 12.1 | 8,385 |
| Cut immigration | Oppose cutting legal immigration by half | 2018 to 2020 | 44.2 | 42.6 | 45.7 | 4.1 | 2.5 | 5.9 | 10.8 | 7,157 |
Repeal of the ACA shows what the two gaps look like in levels.The cumulative CES file codes the 2014 answers to the question on repealing the ACA in the opposite direction from the other years: the Republican minus Democratic share supporting repeal is negative in 2014 and positive in each of the other nine survey years. The 2014 answers are reversed here on that evidence and on the cumulative file's release notes; the 2014 value labels have not been checked against the original questionnaire. The sections on ratios and trends report what changes if they are dropped instead. In deep-red counties 83.1%83.1% percent of respondents supporting repeal of the ACAEstimandweighted share supporting repeal; state-cluster bootstrap intervalInterval95% CI 82.0% to 84.1%n30,100Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationRepublicans in deep-red countiesPeriodCES survey years 2013 to 2021SourceCooperative Election Study of Republicans and 25.6%25.6% percent of respondents supporting repeal of the ACAEstimandweighted share supporting repeal; state-cluster bootstrap intervalInterval95% CI 23.8% to 27.0%n22,175Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats in deep-red countiesPeriodCES survey years 2013 to 2021SourceCooperative Election Study of Democrats support repeal, and in deep-blue counties 78.6%78.6% percent of respondents supporting repeal of the ACAEstimandweighted share supporting repeal; state-cluster bootstrap intervalInterval95% CI 77.5% to 80.0%n16,459Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationRepublicans in deep-blue countiesPeriodCES survey years 2013 to 2021SourceCooperative Election Study and 21.7%21.7% percent of respondents supporting repeal of the ACAEstimandweighted share supporting repeal; state-cluster bootstrap intervalInterval95% CI 19.7% to 23.5%n49,379Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats in deep-blue countiesPeriodCES survey years 2013 to 2021SourceCooperative Election Study. The party gap on this issue is 57.257.2 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimanddifference in the weighted share taking the Democratic side; state-cluster bootstrap interval of the party gap or place gapInterval95% CI 55.8 to 58.8n118,113Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2013 to 2021SourceCooperative Election Study points and the place gap is 4.24.2 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimanddifference in the weighted share taking the Democratic side; state-cluster bootstrap interval of the party gap or place gapInterval95% CI 2.8 to 5.4n118,113Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2013 to 2021SourceCooperative Election Study points, a ratio of 13.713.7 ratio (party gap divided by place gap)Estimanddifference in the weighted share taking the Democratic side; state-cluster bootstrap interval; ratio of the twoInterval95% CI 10.7 to 20.2n118,113Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2013 to 2021SourceCooperative Election Study. On an assault weapons ban the party gap is 41.941.9 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimanddifference in the weighted share taking the Democratic side; state-cluster bootstrap interval of the party gap or place gapInterval95% CI 40.3 to 43.8n118,066Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2013 to 2021SourceCooperative Election Study points and the place gap 7.57.5 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimanddifference in the weighted share taking the Democratic side; state-cluster bootstrap interval of the party gap or place gapInterval95% CI 6.1 to 9.0n118,066Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2013 to 2021SourceCooperative Election Study points, a ratio of 5.65.6 ratio (party gap divided by place gap)Estimanddifference in the weighted share taking the Democratic side; state-cluster bootstrap interval; ratio of the twoInterval95% CI 4.6 to 7.1n118,066Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2013 to 2021SourceCooperative Election Study. On spending for a border wall the party gap is 64.164.1 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimanddifference in the weighted share taking the Democratic side; state-cluster bootstrap interval of the party gap or place gapInterval95% CI 62.5 to 65.8n60,875Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2017 to 2021, not 2019SourceCooperative Election Study points and the place gap 4.14.1 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimanddifference in the weighted share taking the Democratic side; state-cluster bootstrap interval of the party gap or place gapInterval95% CI 2.9 to 5.3n60,875Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2017 to 2021, not 2019SourceCooperative Election Study points, a ratio of 15.515.5 ratio (party gap divided by place gap)Estimanddifference in the weighted share taking the Democratic side; state-cluster bootstrap interval; ratio of the twoInterval95% CI 12.0 to 22.0n60,875Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2017 to 2021, not 2019SourceCooperative Election Study.
The issues were asked in different years, listed in the data table under the figure. Border wall spending was asked only from 2017, and legal gay marriage only through 2016, so the averages combine periods and describe a set of questions rather than a single year.
The ratio varies widely by issue
Figure 2 divides the party gap by the place gap on each issue. The ratio is 3.6 (95% CI 2.6 to 5.6)3.6 ratio (party gap divided by place gap)Estimandsmallest party to place ratio over the issues (legal gay marriage)Interval95% CI 2.6 to 5.6n50,260Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study on legal gay marriage and 15.5 (95% CI 12.0 to 22.0)15.5 ratio (party gap divided by place gap)Estimandlargest party to place ratio over the issues (border wall)Interval95% CI 12.0 to 22.0n60,875Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study on spending for a border wall. The issues with the two smallest ratios, legal gay marriage and abortion, are the two with the largest place gaps, 10.210.2 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimanddifference in the weighted share taking the Democratic side; state-cluster bootstrap interval of the party gap or place gapInterval95% CI 6.6 to 13.7n50,260Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2013 to 2016SourceCooperative Election Study and 12.012.0 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimanddifference in the weighted share taking the Democratic side; state-cluster bootstrap interval of the party gap or place gapInterval95% CI 9.2 to 14.6n113,602Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2014 to 2021SourceCooperative Election Study points, against party gaps of 36.436.4 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimanddifference in the weighted share taking the Democratic side; state-cluster bootstrap interval of the party gap or place gapInterval95% CI 33.6 to 39.3n50,260Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2013 to 2016SourceCooperative Election Study and 46.546.5 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimanddifference in the weighted share taking the Democratic side; state-cluster bootstrap interval of the party gap or place gapInterval95% CI 44.7 to 48.7n113,602Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2014 to 2021SourceCooperative Election Study points. The ratios for repeal of the ACA and Medicare for All are the next largest after the border wall's, and the intervals for the three largest ratios overlap, so their order is not settled. If the 2014 answers to the ACA question are dropped instead of reversed, repeal of the ACA has the largest ratio, 16.7 (95% CI 12.0 to 28.8)16.7 ratio (party gap divided by place gap)Estimandrepeal of the ACA, party gap divided by place gap, with the 2014 answers dropped instead of reversedInterval95% CI 12.0 to 28.8n101,590Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2013 to 2021 without 2014SourceCooperative Election Study. The ratio for Medicare for All, 12.1 (95% CI 7.9 to 31.4)12.1 ratio (party gap divided by place gap)Estimanddifference in the weighted share taking the Democratic side; state-cluster bootstrap interval; ratio of the twoInterval95% CI 7.9 to 31.4n61,141Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2018 to 2021SourceCooperative Election Study, has the widest interval, because its place gap of 4.24.2 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimanddifference in the weighted share taking the Democratic side; state-cluster bootstrap interval of the party gap or place gapInterval95% CI 1.7 to 6.4n61,141Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2018 to 2021SourceCooperative Election Study points is small and a small denominator makes a ratio move with the sample. The median ratio across issues is 8.4 (95% CI 6.7 to 11.0)8.4 ratio (party gap divided by place gap)Estimandmedian over the issues of the party gap divided by the place gapInterval95% CI 6.7 to 11.0n118,638Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study and the ratio of the average gaps is 7.6 (95% CI 6.4 to 9.3)7.6 ratio (party gap divided by place gap)Estimandaverage party gap divided by average place gapInterval95% CI 6.4 to 9.3n118,638Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study; each interval lies above equal gaps.
Figure 2
The party gap is between 3.6 and 15.5 times the place gap, depending on the issue
Party gap divided by place gap, by issue, with 95% intervals; Democrats and Republicans in deep counties; CES survey years 2013 to 2021
Show data
| issue | n | ratio | ratio_hi | ratio_lo |
|---|---|---|---|---|
| Border wall | 8,257 | 15.48 | 21.99 | 12.04 |
| Repeal the ACA | 16,459 | 13.75 | 20.22 | 10.67 |
| Medicare for All | 8,385 | 12.13 | 31.41 | 7.86 |
| Abortion legal | 15,818 | 3.89 | 5.16 | 3.12 |
| EPA regulates CO2 | 15,459 | 8.60 | 13.07 | 6.22 |
| Cut immigration | 7,157 | 10.76 | 17.65 | 7.43 |
| Assault weapons ban | 16,440 | 5.62 | 7.09 | 4.55 |
| Border security | 13,428 | 7.61 | 10.85 | 6.02 |
| Concealed carry | 16,452 | 8.15 | 11.59 | 6.08 |
| Path to legal status | 13,422 | 9.55 | 15.43 | 6.43 |
| Gay marriage | 7,161 | 3.56 | 5.62 | 2.63 |
| Background checks | 13,375 | 6.47 | 14.12 | 4.23 |
Sensitivity to the county cutoff and to leaners
Two choices in the definition of the gaps move their levels. A deep county is one at or beyond a cutoff on the county margin, and a stricter cutoff compares more extreme places. Figure 3 reports the averages at cutoffs of 1010 points of two-party marginEstimandlower cutoff triedWeightsnone (count)Populationsensitivity check on the deep-county cutoffPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study and 4040 points of two-party marginEstimandhigher cutoff triedWeightsnone (count)Populationsensitivity check on the deep-county cutoffPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study points as well as the 2020 points of two-party marginEstimanda county is deep red or deep blue at this margin or moreWeightsnone (count)Populationcounty classificationPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study used elsewhere, and with leaners counted as partisans. The place gap is larger when counties are more extreme, the ratio falls as the cutoff rises, and the party gap is larger than the place gap under every definition.
Figure 3
The party gap exceeds the place gap under every definition, and the ratio falls as the county cutoff rises
Average party gap and place gap over the issues, in points (share taking the Democratic side), and their ratio, with 95% intervals; CES survey years 2013 to 2021
| Definition | Party gap | Party gap, low | Party gap, high | Place gap | Place gap, low | Place gap, high | Ratio | Ratio, low | Ratio, high |
|---|---|---|---|---|---|---|---|---|---|
| Deep county: margin of 10 points or more | 43.8 | 42.7 | 45.0 | 4.5 | 3.8 | 5.2 | 9.8 | 8.4 | 11.7 |
| Deep county: margin of 20 points or more (used in this chapter) | 43.1 | 41.8 | 44.5 | 5.6 | 4.7 | 6.6 | 7.6 | 6.4 | 9.3 |
| Deep county: margin of 40 points or more | 42.3 | 40.1 | 44.5 | 7.3 | 5.8 | 8.9 | 5.8 | 4.6 | 7.5 |
| Leaners counted as partisans, margin of 20 points or more | 44.6 | 43.4 | 46.0 | 5.4 | 4.5 | 6.3 | 8.3 | 7.1 | 10.1 |
Show data
| definition | party_gap | party_gap_hi | party_gap_lo | place_gap | place_gap_hi | place_gap_lo | ratio | ratio_hi | ratio_lo |
|---|---|---|---|---|---|---|---|---|---|
| Deep county: margin of 10 points or more | 43.76 | 45.00 | 42.72 | 4.49 | 5.21 | 3.78 | 9.76 | 11.65 | 8.35 |
| Deep county: margin of 20 points or more (used in this chapter) | 43.09 | 44.48 | 41.80 | 5.63 | 6.62 | 4.68 | 7.65 | 9.32 | 6.43 |
| Deep county: margin of 40 points or more | 42.27 | 44.49 | 40.10 | 7.35 | 8.88 | 5.81 | 5.75 | 7.48 | 4.60 |
| Leaners counted as partisans, margin of 20 points or more | 44.64 | 46.01 | 43.36 | 5.36 | 6.27 | 4.45 | 8.33 | 10.08 | 7.07 |
Support varies less across county margins than between the parties
The deep-county comparison uses only the two ends of the distribution of counties. Figure 4 uses every county, grouped into seven bins by two-party margin, for the issues in the panels. In every panel the Democratic and Republican lines are at least 33.033.0 points (distance between the Democratic and Republican lines)Estimandsmallest distance between the two party lines over the seven county bins and the five issues, in the share supporting the policyn35Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans in the five panels of the county-margin figurePeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study points apart in every bin. In 99 linesEstimandcount of linesWeightsnone (count)Populationlines whose change from the most Republican to the most Democratic bin is toward the Democratic side of the issue with an interval that excludes zeroPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study of the 1010 linesEstimandcount of linesWeightsnone (count)Populationparty lines drawn in the five panels of the county-margin figurePeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study lines the change from the most Republican to the most Democratic bin is toward the Democratic side of the issue, with an interval that excludes zero. The exception is Republican support for a path to legal status, which changes by +3.1 (95% CI −1.1 to 8.5)+3.1 points (change in the share supporting, most Democratic bin minus most Republican bin)Estimanddifference in the weighted share supporting between the most Democratic and the most Republican bin of counties; state-cluster bootstrap intervalInterval95% CI −1.1 to 8.5n16,673Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationRepublicansPeriodCES survey years 2013 to 2021, not 2018SourceCooperative Election Study points.
Figure 4
Within each party, support changes less across county margins than it differs between the parties
Share supporting the policy (%) by party and two-party margin of the respondent's county, seven bins of counties; five issues; CES survey years 2013 to 2021
- Democrats
- Republicans
County two-party margin (points, Democratic minus Republican)
Show data
| bin | conf_high | conf_low | estimate | issue | margin | n | party |
|---|---|---|---|---|---|---|---|
| Below -40 | 83.49 | 78.63 | 81.16 | Assault weapons ban | −53.35 | 8,553 | Democrats |
| -40 to -20 | 84.61 | 81.24 | 83.00 | Assault weapons ban | −29.09 | 13,631 | Democrats |
| -20 to -5 | 86.74 | 82.80 | 84.81 | Assault weapons ban | −12.70 | 13,578 | Democrats |
| -5 to 5 | 87.03 | 82.65 | 84.91 | Assault weapons ban | 0.112 | 13,026 | Democrats |
| 5 to 20 | 87.40 | 85.78 | 86.56 | Assault weapons ban | 12.20 | 25,300 | Democrats |
| 20 to 40 | 88.29 | 85.24 | 86.68 | Assault weapons ban | 28.48 | 21,675 | Democrats |
| Above 40 | 88.59 | 86.32 | 87.29 | Assault weapons ban | 56.26 | 27,716 | Democrats |
| Below -40 | 38.65 | 34.48 | 36.47 | Assault weapons ban | −53.35 | 14,432 | Republicans |
| -40 to -20 | 40.55 | 36.62 | 38.73 | Assault weapons ban | −29.09 | 15,619 | Republicans |
| -20 to -5 | 42.39 | 37.62 | 40.22 | Assault weapons ban | −12.70 | 11,652 | Republicans |
| -5 to 5 | 43.05 | 37.73 | 40.29 | Assault weapons ban | 0.112 | 9,253 | Republicans |
| 5 to 20 | 45.48 | 40.82 | 43.35 | Assault weapons ban | 12.20 | 14,228 | Republicans |
| 20 to 40 | 48.90 | 44.40 | 46.96 | Assault weapons ban | 28.48 | 9,629 | Republicans |
| Above 40 | 53.43 | 44.84 | 49.04 | Assault weapons ban | 56.26 | 6,811 | Republicans |
| Below -40 | 75.61 | 69.08 | 72.62 | Path to legal status | −53.35 | 6,731 | Democrats |
| -40 to -20 | 74.12 | 70.02 | 72.14 | Path to legal status | −29.09 | 10,838 | Democrats |
| -20 to -5 | 74.83 | 70.90 | 72.89 | Path to legal status | −12.70 | 11,500 | Democrats |
| -5 to 5 | 75.21 | 70.21 | 72.70 | Path to legal status | 0.112 | 10,868 | Democrats |
| 5 to 20 | 75.95 | 73.97 | 74.97 | Path to legal status | 12.20 | 21,339 | Democrats |
| 20 to 40 | 78.10 | 74.79 | 76.47 | Path to legal status | 28.48 | 18,012 | Democrats |
| Above 40 | 79.18 | 76.62 | 77.95 | Path to legal status | 56.26 | 23,266 | Democrats |
| Below -40 | 36.16 | 32.90 | 34.40 | Path to legal status | −53.35 | 11,088 | Republicans |
| -40 to -20 | 36.32 | 33.01 | 34.63 | Path to legal status | −29.09 | 12,294 | Republicans |
| -20 to -5 | 35.04 | 32.07 | 33.68 | Path to legal status | −12.70 | 9,881 | Republicans |
| -5 to 5 | 37.36 | 33.83 | 35.49 | Path to legal status | 0.112 | 7,640 | Republicans |
| 5 to 20 | 37.94 | 32.68 | 35.41 | Path to legal status | 12.20 | 11,721 | Republicans |
| 20 to 40 | 39.71 | 35.64 | 37.72 | Path to legal status | 28.48 | 7,837 | Republicans |
| Above 40 | 42.74 | 34.03 | 37.53 | Path to legal status | 56.26 | 5,585 | Republicans |
| Below -40 | 29.34 | 25.13 | 27.44 | Repeal the ACA (support for repeal) | −53.35 | 8,556 | Democrats |
| -40 to -20 | 26.22 | 22.46 | 24.38 | Repeal the ACA (support for repeal) | −29.09 | 13,619 | Democrats |
| -20 to -5 | 25.96 | 22.44 | 24.14 | Repeal the ACA (support for repeal) | −12.70 | 13,555 | Democrats |
| -5 to 5 | 24.41 | 21.30 | 22.93 | Repeal the ACA (support for repeal) | 0.112 | 13,014 | Democrats |
| 5 to 20 | 23.21 | 19.73 | 21.69 | Repeal the ACA (support for repeal) | 12.20 | 25,277 | Democrats |
| 20 to 40 | 24.37 | 19.24 | 21.95 | Repeal the ACA (support for repeal) | 28.48 | 21,665 | Democrats |
| Above 40 | 23.79 | 18.73 | 21.58 | Repeal the ACA (support for repeal) | 56.26 | 27,714 | Democrats |
| Below -40 | 83.72 | 80.90 | 82.42 | Repeal the ACA (support for repeal) | −53.35 | 14,470 | Republicans |
| -40 to -20 | 84.83 | 82.53 | 83.71 | Repeal the ACA (support for repeal) | −29.09 | 15,630 | Republicans |
| -20 to -5 | 86.79 | 84.59 | 85.73 | Repeal the ACA (support for repeal) | −12.70 | 11,652 | Republicans |
| -5 to 5 | 84.54 | 82.01 | 83.16 | Repeal the ACA (support for repeal) | 0.112 | 9,251 | Republicans |
| 5 to 20 | 83.07 | 80.21 | 81.47 | Repeal the ACA (support for repeal) | 12.20 | 14,220 | Republicans |
| 20 to 40 | 80.89 | 77.95 | 79.42 | Repeal the ACA (support for repeal) | 28.48 | 9,633 | Republicans |
| Above 40 | 79.84 | 76.22 | 77.40 | Repeal the ACA (support for repeal) | 56.26 | 6,826 | Republicans |
| Below -40 | 73.89 | 66.74 | 70.37 | Abortion legal | −53.35 | 8,255 | Democrats |
| -40 to -20 | 76.25 | 71.90 | 74.15 | Abortion legal | −29.09 | 13,015 | Democrats |
| -20 to -5 | 79.82 | 76.77 | 78.39 | Abortion legal | −12.70 | 12,696 | Democrats |
| -5 to 5 | 80.64 | 75.54 | 78.21 | Abortion legal | 0.112 | 12,287 | Democrats |
| 5 to 20 | 82.08 | 78.67 | 80.43 | Abortion legal | 12.20 | 24,028 | Democrats |
| 20 to 40 | 82.96 | 77.85 | 80.38 | Abortion legal | 28.48 | 20,804 | Democrats |
| Above 40 | 84.98 | 81.98 | 83.59 | Abortion legal | 56.26 | 26,619 | Democrats |
| Below -40 | 23.12 | 19.97 | 21.57 | Abortion legal | −53.35 | 14,058 | Republicans |
| -40 to -20 | 27.82 | 23.39 | 25.76 | Abortion legal | −29.09 | 15,033 | Republicans |
| -20 to -5 | 31.62 | 26.02 | 28.88 | Abortion legal | −12.70 | 10,900 | Republicans |
| -5 to 5 | 34.39 | 29.48 | 32.33 | Abortion legal | 0.112 | 8,783 | Republicans |
| 5 to 20 | 35.55 | 29.43 | 32.95 | Abortion legal | 12.20 | 13,516 | Republicans |
| 20 to 40 | 38.48 | 32.15 | 35.59 | Abortion legal | 28.48 | 9,260 | Republicans |
| Above 40 | 45.05 | 36.31 | 41.62 | Abortion legal | 56.26 | 6,558 | Republicans |
| Below -40 | 68.37 | 59.64 | 63.90 | Gay marriage | −53.35 | 3,353 | Democrats |
| -40 to -20 | 71.41 | 64.60 | 67.99 | Gay marriage | −29.09 | 6,079 | Democrats |
| -20 to -5 | 75.93 | 68.93 | 72.89 | Gay marriage | −12.70 | 6,730 | Democrats |
| -5 to 5 | 76.62 | 67.97 | 72.01 | Gay marriage | 0.112 | 6,378 | Democrats |
| 5 to 20 | 77.24 | 70.62 | 74.08 | Gay marriage | 12.20 | 11,861 | Democrats |
| 20 to 40 | 77.28 | 67.94 | 72.45 | Gay marriage | 28.48 | 9,357 | Democrats |
| Above 40 | 79.15 | 70.81 | 75.20 | Gay marriage | 56.26 | 12,598 | Democrats |
| Below -40 | 27.81 | 22.79 | 25.22 | Gay marriage | −53.35 | 5,044 | Republicans |
| -40 to -20 | 31.00 | 26.70 | 28.98 | Gay marriage | −29.09 | 6,668 | Republicans |
| -20 to -5 | 35.05 | 28.89 | 31.87 | Gay marriage | −12.70 | 5,720 | Republicans |
| -5 to 5 | 39.46 | 33.00 | 36.45 | Gay marriage | 0.112 | 4,399 | Republicans |
| 5 to 20 | 40.11 | 34.02 | 37.51 | Gay marriage | 12.20 | 6,431 | Republicans |
| 20 to 40 | 41.78 | 35.92 | 38.96 | Gay marriage | 28.48 | 4,079 | Republicans |
| Above 40 | 45.50 | 35.94 | 42.18 | Gay marriage | 56.26 | 3,082 | Republicans |
The two largest changes are among Republicans, +20.1 (95% CI 14.8 to 24.0)+20.1 points (change in the share supporting, most Democratic bin minus most Republican bin)Estimanddifference in the weighted share supporting between the most Democratic and the most Republican bin of counties; state-cluster bootstrap intervalInterval95% CI 14.8 to 24.0n20,616Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationRepublicansPeriodCES survey years 2014 to 2021SourceCooperative Election Study points on abortion and +17.0 (95% CI 10.3 to 21.5)+17.0 points (change in the share supporting, most Democratic bin minus most Republican bin)Estimanddifference in the weighted share supporting between the most Democratic and the most Republican bin of counties; state-cluster bootstrap intervalInterval95% CI 10.3 to 21.5n8,126Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationRepublicansPeriodCES survey years 2013 to 2016SourceCooperative Election Study points on legal gay marriage, which are also the issues with the largest place gaps. On the assault weapons ban, Republican support rises from 36.5%36.5% percent of respondents supportingEstimandweighted share supporting the policy; state-cluster bootstrap intervalInterval95% CI 34.5% to 38.6%n14,432Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationRepublicans in the most Republican bin of countiesPeriodCES survey years 2013 to 2021SourceCooperative Election Study in the most Republican bin to 49.0%49.0% percent of respondents supportingEstimandweighted share supporting the policy; state-cluster bootstrap intervalInterval95% CI 44.8% to 53.4%n6,811Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationRepublicans in the most Democratic bin of countiesPeriodCES survey years 2013 to 2021SourceCooperative Election Study in the most Democratic bin, a change of +12.6 (95% CI 8.6 to 16.9)+12.6 points (change in the share supporting, most Democratic bin minus most Republican bin)Estimanddifference in the weighted share supporting between the most Democratic and the most Republican bin of counties; state-cluster bootstrap intervalInterval95% CI 8.6 to 16.9n21,243Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationRepublicansPeriodCES survey years 2013 to 2021SourceCooperative Election Study points, and Democratic support goes from 81.2%81.2% percent of respondents supportingEstimandweighted share supporting the policy; state-cluster bootstrap intervalInterval95% CI 78.6% to 83.5%n8,553Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats in the most Republican bin of countiesPeriodCES survey years 2013 to 2021SourceCooperative Election Study to 87.3%87.3% percent of respondents supportingEstimandweighted share supporting the policy; state-cluster bootstrap intervalInterval95% CI 86.3% to 88.6%n27,716Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats in the most Democratic bin of countiesPeriodCES survey years 2013 to 2021SourceCooperative Election Study. Republican respondents in Democratic counties support a ban more often than Republican respondents in Republican counties, and the change is shallow next to the 41.941.9 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimanddifference in the weighted share taking the Democratic side; state-cluster bootstrap interval of the party gap or place gapInterval95% CI 40.3 to 43.8n118,066Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES survey years 2013 to 2021SourceCooperative Election Study points that separate the parties on this issue.
Republican place gaps are larger on most issues, not reliably
Figure 5 splits the place gap by party. Of the 2424 party by issue combinationsEstimandcount of combinationsWeightsnone (count)PopulationDemocrats and Republicans on each issuePeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study place gaps, one for each party on each issue, all 2424 party by issue combinationsEstimandcount of combinations with a positive point estimateWeightsnone (count)Populationcombinations with a place gap above zeroPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study have deep-blue counties on the more Democratic side, and 2222 party by issue combinationsEstimandcount of combinations with a positive intervalWeightsnone (count)Populationcombinations whose interval lies above zeroPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study have an interval above zero. The Republican gap is larger than the Democratic gap on 99 issuesEstimandcount of issues with a point estimate of the difference above zero to one decimalWeightsnone (count)Populationissues where the Republican place gap exceeds the Democratic one by at least a tenth of a pointPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study of the 1212 policy questionsEstimandcount of issuesWeightsnone (count)Populationthe CES policy questions used in the chapterPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study issues, and the two are equal to one decimal on easier concealed carry. The interval for the difference lies above zero on 55 issuesEstimandcount of issuesWeightsnone (count)Populationissues where the difference has an interval above zeroPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study of them, and on 44 issuesEstimandcount of issuesWeightsnone (count)Populationissues where the interval for the difference lies above zero by less than one point at its lower endPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study of those its lower end is below 11 pointsEstimandcutoff used to count intervals that only just clear zeroWeightsnone (count)Populationa lower interval end within this many points of zero is called close to zeroPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study point. It lies below zero on no issue. Averaged over issues, the Republican place gap is 6.8 (95% CI 5.0 to 8.5)6.8 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandaverage over the issues of the Republican place gapInterval95% CI 5.0 to 8.5n118,638Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationRepublicans in deep countiesPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study points and the Democratic place gap 4.5 (95% CI 2.8 to 6.3)4.5 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandaverage over the issues of the Democratic place gapInterval95% CI 2.8 to 6.3n118,638Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats in deep countiesPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study points. The difference, 2.3 (95% CI −0.7 to 5.1)2.3 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandaverage over the issues of the Republican place gap minus the Democratic place gapInterval95% CI −0.7 to 5.1n118,638Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans in deep countiesPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study points, has an interval that includes zero.
Figure 5
The Republican place gap is larger on most issues, but the interval for the average difference includes zero
Place gap in points (deep-blue minus deep-red counties, share taking the Democratic side) for Democrats and Republicans, by issue; CES survey years 2013 to 2021
- Democrats
- Republicans
Show data
| Model | Issue | Democrats | Democrats, low | Democrats, high | Republicans | Republicans, low | Republicans, high | Republican minus Democratic | Difference, low | Difference, high | Democrats, n | Republicans, n | Democrats, states | Republicans, states |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| raw | Border wall | 1.9 | −0.5 | 4.3 | 6.4 | 3.8 | 8.4 | +4.5 | +0.2 | +8.4 | 36,261 | 24,614 | 50 | 50 |
| raw | Repeal the ACA | 3.8 | 1.4 | 6.3 | 4.5 | 2.6 | 6.0 | +0.7 | −3.0 | +3.9 | 71,554 | 46,559 | 50 | 50 |
| raw | Medicare for All | 2.7 | 1.2 | 4.2 | 5.7 | 0.8 | 9.7 | +3.0 | −1.9 | +7.1 | 36,118 | 25,023 | 50 | 50 |
| raw | Abortion legal | 9.5 | 6.1 | 12.9 | 14.4 | 10.9 | 17.5 | +4.9 | +0.5 | +8.5 | 68,693 | 44,909 | 50 | 50 |
| raw | EPA regulates CO2 | 3.7 | 1.9 | 5.5 | 6.6 | 3.5 | 10.0 | +2.9 | −0.9 | +7.1 | 66,941 | 43,698 | 50 | 50 |
| raw | Cut immigration | 3.5 | 1.3 | 6.0 | 4.8 | 2.8 | 6.8 | +1.3 | −1.5 | +4.1 | 30,037 | 21,417 | 50 | 50 |
| raw | Assault weapons ban | 4.7 | 2.9 | 6.9 | 10.2 | 7.9 | 12.6 | +5.4 | +2.0 | +8.6 | 71,575 | 46,491 | 50 | 50 |
| raw | Border security | 6.2 | 3.3 | 9.1 | 4.3 | 2.1 | 6.4 | −1.9 | −6.0 | +2.4 | 58,832 | 36,812 | 50 | 50 |
| raw | Concealed carry | 4.8 | 2.8 | 7.2 | 4.8 | 2.4 | 7.4 | 0.0 | −3.5 | +3.6 | 71,622 | 46,533 | 50 | 50 |
| raw | Path to legal status | 5.0 | 2.8 | 7.3 | 3.1 | 0.5 | 6.0 | −1.9 | −5.7 | +1.9 | 58,847 | 36,804 | 50 | 50 |
| raw | Gay marriage | 7.5 | 2.4 | 12.5 | 13.0 | 9.3 | 16.2 | +5.5 | +0.7 | +10.2 | 31,387 | 18,873 | 50 | 50 |
| raw | Background checks | 0.5 | −0.2 | 1.3 | 3.6 | 1.4 | 5.6 | +3.0 | +0.5 | +5.3 | 58,365 | 37,872 | 50 | 50 |
| demographics | Border wall | 1.2 | −1.0 | 3.3 | 2.3 | 0.5 | 4.1 | +1.1 | −2.3 | +4.5 | 36,193 | 24,604 | 50 | 50 |
| demographics | Repeal the ACA | 3.6 | 1.7 | 5.5 | 2.7 | 1.1 | 4.2 | −0.9 | −3.4 | +1.5 | 71,486 | 46,549 | 50 | 50 |
| demographics | Medicare for All | 2.0 | 0.6 | 3.5 | 3.3 | 0.5 | 6.1 | +1.3 | −1.7 | +4.2 | 36,050 | 25,013 | 50 | 50 |
| demographics | Abortion legal | 10.1 | 7.1 | 13.1 | 12.8 | 9.5 | 16.0 | +2.7 | −0.3 | +5.6 | 68,625 | 44,899 | 50 | 50 |
| demographics | EPA regulates CO2 | 3.8 | 2.2 | 5.4 | 5.7 | 3.1 | 8.2 | +1.9 | −1.3 | +5.0 | 66,873 | 43,688 | 50 | 50 |
| demographics | Cut immigration | 2.6 | 0.6 | 4.7 | 0.4 | −1.5 | 2.3 | −2.3 | −4.7 | +0.2 | 30,037 | 21,417 | 50 | 50 |
| demographics | Assault weapons ban | 5.7 | 4.0 | 7.5 | 10.5 | 8.2 | 12.8 | +4.8 | +1.9 | +7.7 | 71,507 | 46,481 | 50 | 50 |
| demographics | Border security | 4.9 | 2.4 | 7.4 | 1.7 | −0.1 | 3.5 | −3.1 | −6.7 | +0.4 | 58,764 | 36,802 | 50 | 50 |
| demographics | Concealed carry | 5.7 | 3.9 | 7.5 | 5.1 | 2.6 | 7.6 | −0.7 | −3.7 | +2.4 | 71,554 | 46,523 | 50 | 50 |
| demographics | Path to legal status | 3.2 | 1.3 | 5.1 | 1.1 | −1.3 | 3.5 | −2.1 | −5.2 | +1.0 | 58,779 | 36,794 | 50 | 50 |
| demographics | Gay marriage | 10.2 | 6.6 | 13.8 | 12.7 | 9.0 | 16.3 | +2.5 | −1.7 | +6.6 | 31,387 | 18,873 | 50 | 50 |
| demographics | Background checks | 1.0 | 0.3 | 1.8 | 4.1 | 1.8 | 6.4 | +3.1 | +0.5 | +5.6 | 58,297 | 37,862 | 50 | 50 |
| demographics_state | Border wall | 0.7 | −1.6 | 2.9 | 2.1 | −0.1 | 4.4 | +1.4 | −2.5 | +5.3 | 36,193 | 24,604 | 37 | 35 |
| demographics_state | Repeal the ACA | 2.8 | 0.6 | 4.9 | 1.5 | −0.2 | 3.1 | −1.3 | −4.1 | +1.5 | 71,486 | 46,549 | 38 | 35 |
| demographics_state | Medicare for All | 1.7 | 0.2 | 3.2 | 2.5 | −0.2 | 5.2 | +0.8 | −2.2 | +3.9 | 36,050 | 25,013 | 37 | 35 |
| demographics_state | Abortion legal | 6.4 | 3.4 | 9.4 | 8.1 | 6.1 | 10.1 | +1.7 | −1.9 | +5.2 | 68,625 | 44,899 | 38 | 35 |
| demographics_state | EPA regulates CO2 | 2.6 | 0.8 | 4.3 | 5.5 | 3.1 | 7.9 | +2.9 | −0.6 | +6.5 | 66,873 | 43,688 | 38 | 35 |
| demographics_state | Cut immigration | 1.9 | 0.1 | 3.8 | 1.0 | −1.3 | 3.3 | −0.9 | −3.1 | +1.3 | 30,037 | 21,417 | 37 | 34 |
| demographics_state | Assault weapons ban | 4.4 | 2.3 | 6.6 | 8.7 | 6.8 | 10.7 | +4.3 | +1.3 | +7.3 | 71,507 | 46,481 | 37 | 35 |
| demographics_state | Border security | 3.1 | 0.5 | 5.7 | 1.6 | −0.2 | 3.5 | −1.4 | −5.2 | +2.4 | 58,764 | 36,802 | 38 | 35 |
| demographics_state | Concealed carry | 4.5 | 2.5 | 6.4 | 4.9 | 2.6 | 7.2 | +0.5 | −3.1 | +4.0 | 71,554 | 46,523 | 38 | 35 |
| demographics_state | Path to legal status | 2.7 | 0.7 | 4.7 | 2.0 | −0.4 | 4.4 | −0.7 | −4.0 | +2.6 | 58,779 | 36,794 | 38 | 35 |
| demographics_state | Gay marriage | 5.6 | 1.2 | 10.1 | 8.6 | 4.7 | 12.5 | +3.0 | −1.7 | +7.6 | 31,387 | 18,873 | 36 | 34 |
| demographics_state | Background checks | 0.7 | −0.3 | 1.6 | 3.3 | 1.3 | 5.3 | +2.6 | +0.5 | +4.7 | 58,297 | 37,862 | 37 | 35 |
The second and third views of the figure adjust for education, race, age and gender in a weighted linear probability modelLinear probability modelA regression of a yes-or-no outcome on predictors, fitted by least squares so that each coefficient is a change in the probability of yes. The book weights it and reports robust standard errors., and the third adds state fixed effectsFixed effectsRegression terms that give each group, such as each country or each year, its own baseline. The other coefficients then compare respondents within the same group., so that the comparison is between respondents in the same state. Adjusting for demographics alone leaves 1515 party by issue combinationsEstimandcount of combinations, model with demographics onlyWeightsnone (count)Populationadjusted place gaps smaller than the raw gapPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study of the 2424 party by issue combinationsEstimandcount of combinationsWeightsnone (count)PopulationDemocrats and Republicans on each issuePeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study gaps smaller than the raw gap, and adding state fixed effects leaves 2222 party by issue combinationsEstimandcount of combinations, model with demographics and state fixed effectsWeightsnone (count)Populationadjusted place gaps smaller than the raw gapPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study, with 1616 party by issue combinationsEstimandcount of combinations, model with demographics and state fixed effectsWeightsnone (count)Populationadjusted place gaps with an interval above zeroPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study of the 2424 party by issue combinationsEstimandcount of combinationsWeightsnone (count)PopulationDemocrats and Republicans on each issuePeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study having an interval above zero. The state fixed effects compare respondents within states, so they rest on the 3434 statesEstimandcount of states that identify the state fixed effects gapWeightsnone (count)Populationstates holding both a deep-red and a deep-blue county for the party and issue (fewest over the combinations)PeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study to 3838 statesEstimandcount of states that identify the state fixed effects gapWeightsnone (count)Populationstates holding both a deep-red and a deep-blue county for the party and issue (most over the combinations)PeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study states, depending on party and issue, that hold both deep-red and deep-blue counties, and the change from the raw gap combines the adjustment with a change in sample. With both adjustments the Republican gap is larger than the Democratic gap on 88 issuesEstimandcount of issues with a positive point estimateWeightsnone (count)Populationissues where the adjusted Republican place gap exceeds the Democratic one, demographics and state fixed effectsPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study of the 1212 policy questionsEstimandcount of issuesWeightsnone (count)Populationthe CES policy questions used in the chapterPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study issues, and the interval for the difference lies above zero on the assault weapons ban and background checks only. On the assault weapons ban the adjusted Republican gap is 8.7 (95% CI 6.8 to 10.7)8.7 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandplace gap from a weighted linear regression with education, race, age, gender and state fixed effects; standard errors clustered by stateInterval95% CI 6.8 to 10.7n46,481Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationRepublicans in deep countiesPeriodCES survey years 2013 to 2021SourceCooperative Election Study points and the Democratic gap 4.4 (95% CI 2.3 to 6.6)4.4 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandplace gap from a weighted linear regression with education, race, age, gender and state fixed effects; standard errors clustered by stateInterval95% CI 2.3 to 6.6n71,507Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats in deep countiesPeriodCES survey years 2013 to 2021SourceCooperative Election Study points, a difference of +4.3 (95% CI 1.3 to 7.3)+4.3 points (difference in the share taking the Democratic side, on a 0 to 100 scale)EstimandRepublican minus Democratic place gap, coefficient on deep-blue by Republican in a weighted regression with education, race, age, gender and state fixed effects; every term interacted with party; standard errors clustered by stateInterval95% CI 1.3 to 7.3n118,066Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans in deep countiesPeriodCES survey years 2013 to 2021SourceCooperative Election Study points. On abortion and legal gay marriage the adjusted intervals for the two parties overlap.
Independents with no lean have larger place gaps than partisans
Here an independent is a respondent at the middle of the seven-point party scale who did not name a party, and the two groups of leaners are shown apart. Across the 1212 policy questionsEstimandcount of issuesWeightsnone (count)Populationthe CES policy questions used in the chapterPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study issues, the average place gap of independents with no lean is 9.2 (95% CI 7.4 to 10.7)9.2 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandaverage over the issues of the place gap among Independents with no leanInterval95% CI 7.4 to 10.7n118,638Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationIndependents who lean toward neither party (middle of the seven-point scale) in deep countiesPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study points, which is 3.5 (95% CI 1.9 to 5.0)3.5 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandaverage place gap of Independents with no lean minus the average place gap of Democrats and RepublicansInterval95% CI 1.9 to 5.0n118,638Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationIndependents with no lean, Democrats and Republicans in deep countiesPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study points more than the average for Democrats and Republicans together. Figure 6 shows all five groups. In point estimates the place gap of independents with no lean is larger than both partisan place gaps on 99 issuesEstimandcount of issues, point estimatesWeightsnone (count)Populationissues where the Independents' place gap exceeds both partisan gapsPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study of the 1212 policy questionsEstimandcount of issuesWeightsnone (count)Populationthe CES policy questions used in the chapterPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study issues. Democratic leaners have an average place gap of 3.33.3 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandaverage over the issues of the place gap among Democratic leanersInterval95% CI 2.0 to 4.6n118,638Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocratic leaners in deep countiesPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study points and Republican leaners of 6.76.7 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandaverage over the issues of the place gap among Republican leanersInterval95% CI 4.6 to 8.8n118,638Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationRepublican leaners in deep countiesPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study points.
Figure 6
The average place gap is larger among independents with no lean than among Democrats and Republicans
Place gap averaged over the issues, in points (deep-blue minus deep-red counties, share taking the Democratic side), by party group, with 95% intervals; CES survey years 2013 to 2021
Show data
| n | party_id | place_gap | place_gap_hi | place_gap_lo |
|---|---|---|---|---|
| 9,432 | Democrats | 4.49 | 6.29 | 2.79 |
| 2,804 | Democratic leaners | 3.33 | 4.59 | 1.98 |
| 5,761 | Independents (no lean) | 9.18 | 10.70 | 7.37 |
| 2,783 | Republican leaners | 6.69 | 8.78 | 4.58 |
| 7,157 | Republicans | 6.78 | 8.47 | 5.00 |
Figure 7 follows one issue, support for universal background checks, which has the smallest party gap and the smallest place gap of the issues in Figure 1, across the bins of county margin for all the party groups. Democrats support the policy at 95.0%95.0% percent of respondents supporting universal background checksEstimandweighted share supporting; state-cluster bootstrap intervalInterval95% CI 94.2% to 95.9%n11,448Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats, lowest of the seven county binsPeriodCES survey years 2013 to 2021, not 2020SourceCooperative Election Study to 96.3%96.3% percent of respondents supporting universal background checksEstimandweighted share supporting; state-cluster bootstrap intervalInterval95% CI 95.3% to 97.1%n10,899Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats, highest of the seven county binsPeriodCES survey years 2013 to 2021, not 2020SourceCooperative Election Study in every bin, near the top of the scale, which leaves little room to rise, and Republicans at 80.3%80.3% percent of respondents supporting universal background checksEstimandweighted share supporting; state-cluster bootstrap intervalInterval95% CI 78.6% to 81.8%n11,459Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationRepublicans, lowest of the seven county binsPeriodCES survey years 2013 to 2021, not 2020SourceCooperative Election Study to 84.4%84.4% percent of respondents supporting universal background checksEstimandweighted share supporting; state-cluster bootstrap intervalInterval95% CI 82.4% to 86.2%n7,804Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationRepublicans, highest of the seven county binsPeriodCES survey years 2013 to 2021, not 2020SourceCooperative Election Study. Independents with no lean go from 79.0%79.0% percent of respondents supportingEstimandweighted share supporting the policy; state-cluster bootstrap intervalInterval95% CI 75.6% to 82.1%n5,500Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationIndependents with no lean in the most Republican bin of countiesPeriodCES survey years 2013 to 2021, not 2020SourceCooperative Election Study support in the most Republican bin to 86.1%86.1% percent of respondents supportingEstimandweighted share supporting the policy; state-cluster bootstrap intervalInterval95% CI 83.8% to 87.8%n5,701Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationIndependents with no lean in the most Democratic bin of countiesPeriodCES survey years 2013 to 2021, not 2020SourceCooperative Election Study in the most Democratic bin, a change of +7.1 (95% CI 3.2 to 10.8)+7.1 points (change in the share supporting, most Democratic bin minus most Republican bin)Estimanddifference in the weighted share supporting between the most Democratic and the most Republican bin of counties; state-cluster bootstrap intervalInterval95% CI 3.2 to 10.8n11,201Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationIndependents with no leanPeriodCES survey years 2013 to 2021, not 2020SourceCooperative Election Study points, and Republican leaners go from 71.0%71.0% percent of respondents supportingEstimandweighted share supporting the policy; state-cluster bootstrap intervalInterval95% CI 68.7% to 73.7%n3,870Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationRepublican leaners in the most Republican bin of countiesPeriodCES survey years 2013 to 2021, not 2020SourceCooperative Election Study to 79.3%79.3% percent of respondents supportingEstimandweighted share supporting the policy; state-cluster bootstrap intervalInterval95% CI 75.7% to 82.2%n2,270Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationRepublican leaners in the most Democratic bin of countiesPeriodCES survey years 2013 to 2021, not 2020SourceCooperative Election Study, a change of +8.3 (95% CI 3.8 to 11.9)+8.3 points (change in the share supporting, most Democratic bin minus most Republican bin)Estimanddifference in the weighted share supporting between the most Democratic and the most Republican bin of counties; state-cluster bootstrap intervalInterval95% CI 3.8 to 11.9n6,140Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationRepublican leanersPeriodCES survey years 2013 to 2021, not 2020SourceCooperative Election Study points. Both intervals lie above zero. For Democrats and Democratic leaners the interval for the change includes zero, and for Republicans the change is +3.4 (95% CI 0.0 to 5.9)+3.4 points (change in the share supporting, most Democratic bin minus most Republican bin)Estimanddifference in the weighted share supporting between the most Democratic and the most Republican bin of counties; state-cluster bootstrap intervalInterval95% CI 0.0 to 5.9n17,030Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationRepublicansPeriodCES survey years 2013 to 2021, not 2020SourceCooperative Election Study points and the interval reaches zero.
Figure 7
Support for background checks rises with county margin among independents and Republican leaners, not among Democrats
Share supporting universal background checks (%) by party identification and two-party margin of the respondent's county, seven bins of counties; CES survey years 2013 to 2021
Show data
| bin | conf_high | conf_low | estimate | margin | n | party_id |
|---|---|---|---|---|---|---|
| Below -40 | 96.81 | 94.81 | 95.91 | −53.35 | 7,003 | Democrats |
| -40 to -20 | 95.87 | 94.21 | 95.02 | −29.09 | 11,448 | Democrats |
| -20 to -5 | 96.78 | 95.46 | 96.20 | −12.70 | 11,168 | Democrats |
| -5 to 5 | 97.09 | 95.31 | 96.29 | 0.112 | 10,899 | Democrats |
| 5 to 20 | 96.46 | 95.23 | 95.87 | 12.20 | 20,631 | Democrats |
| 20 to 40 | 96.70 | 95.37 | 96.04 | 28.48 | 17,396 | Democrats |
| Above 40 | 96.61 | 95.06 | 95.80 | 56.26 | 22,518 | Democrats |
| Below -40 | 96.66 | 92.91 | 94.77 | −53.35 | 2,183 | Lean Dem. |
| -40 to -20 | 96.23 | 93.87 | 95.06 | −29.09 | 3,477 | Lean Dem. |
| -20 to -5 | 95.66 | 92.41 | 94.06 | −12.70 | 3,152 | Lean Dem. |
| -5 to 5 | 96.77 | 93.52 | 95.18 | 0.112 | 2,952 | Lean Dem. |
| 5 to 20 | 97.06 | 95.64 | 96.37 | 12.20 | 5,520 | Lean Dem. |
| 20 to 40 | 97.23 | 94.11 | 95.61 | 28.48 | 4,321 | Lean Dem. |
| Above 40 | 97.13 | 95.46 | 96.21 | 56.26 | 4,813 | Lean Dem. |
| Below -40 | 82.12 | 75.65 | 78.95 | −53.35 | 5,500 | Independents |
| -40 to -20 | 83.92 | 79.89 | 82.06 | −29.09 | 6,604 | Independents |
| -20 to -5 | 85.36 | 78.83 | 82.51 | −12.70 | 5,603 | Independents |
| -5 to 5 | 87.87 | 82.44 | 85.18 | 0.112 | 4,769 | Independents |
| 5 to 20 | 86.61 | 83.58 | 85.13 | 12.20 | 8,452 | Independents |
| 20 to 40 | 87.70 | 83.30 | 85.67 | 28.48 | 6,078 | Independents |
| Above 40 | 87.81 | 83.76 | 86.09 | 56.26 | 5,701 | Independents |
| Below -40 | 73.68 | 68.67 | 70.95 | −53.35 | 3,870 | Lean Rep. |
| -40 to -20 | 74.74 | 68.63 | 71.91 | −29.09 | 4,417 | Lean Rep. |
| -20 to -5 | 77.88 | 70.76 | 74.35 | −12.70 | 3,652 | Lean Rep. |
| -5 to 5 | 78.91 | 73.10 | 76.15 | 0.112 | 2,888 | Lean Rep. |
| 5 to 20 | 81.74 | 76.67 | 79.38 | 12.20 | 4,687 | Lean Rep. |
| 20 to 40 | 83.15 | 77.37 | 80.47 | 28.48 | 3,132 | Lean Rep. |
| Above 40 | 82.15 | 75.74 | 79.28 | 56.26 | 2,270 | Lean Rep. |
| Below -40 | 81.79 | 78.63 | 80.31 | −53.35 | 11,459 | Republicans |
| -40 to -20 | 82.36 | 78.79 | 80.73 | −29.09 | 13,038 | Republicans |
| -20 to -5 | 83.15 | 79.25 | 81.50 | −12.70 | 9,468 | Republicans |
| -5 to 5 | 84.38 | 80.03 | 82.26 | 0.112 | 7,663 | Republicans |
| 5 to 20 | 84.28 | 80.85 | 82.84 | 12.20 | 11,619 | Republicans |
| 20 to 40 | 86.17 | 82.45 | 84.42 | 28.48 | 7,804 | Republicans |
| Above 40 | 85.67 | 80.29 | 83.66 | 56.26 | 5,571 | Republicans |
The party gap rose on most issues
Figure 8 follows 44 issuesEstimandcount of issuesWeightsnone (count)Populationissues drawn in the trend panelsPeriodCES cyclesSourceCooperative Election Study issues across presidential cycles, including the two with the longest history, border security and a path to legal status. A presidential cycle pools the surveys from one presidential election to the next and uses the county margin of that election, so the 2016 cycle covers surveys from 2016 to 2019. The trend draws on the 2006 to 2021 source window and not only on the 2013 to 2021 interviews of the main comparison, so its earlier cycles include surveys from before 2013. Between the first and last cycle in which an issue was asked, the party gap rose on 33 issuesEstimandcount of issuesWeightsnone (count)Populationissues drawn in the trend panels whose party gap rose between the first and last cycle, with an interval above zeroPeriodCES cyclesSourceCooperative Election Study of the 44 issuesEstimandcount of issuesWeightsnone (count)Populationissues drawn in the trend panelsPeriodCES cyclesSourceCooperative Election Study issues, with an interval above zero. On repeal of the ACA the party gap went from 53.853.8 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandparty gap in the 2012 cycleInterval95% CI 51.8 to 55.8n41,833Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES surveys pooled in the 2012 presidential cycleSourceCooperative Election Study points in the 2012 cycle to 55.855.8 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandparty gap in the 2020 cycleInterval95% CI 54.2 to 57.7n31,281Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES surveys pooled in the 2020 presidential cycleSourceCooperative Election Study points in the 2020 cycle, a change of +2.0 (95% CI 0.0 to 4.1)+2.0 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandchange in the party gap from the first to the last cycle in which the issue was askedInterval95% CI 0.0 to 4.1n73,114Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES cycles 2012 to 2020SourceCooperative Election Study points whose interval reaches zero. With the 2014 answers dropped instead of reversed, the change is +5.9 (95% CI 3.6 to 8.3)+5.9 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandrepeal of the ACA, change in the party gap from the 2012 to the 2020 cycle, with the 2014 answers dropped instead of reversedInterval95% CI 3.6 to 8.3n73,114Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES cycles 2012 to 2020 without 2014SourceCooperative Election Study points, with an interval above zero.Not every issue was asked in every survey, so an endpoint can rest on one or two surveys. The 2004 cycle is the 2007 survey alone and its groups are small, universal background checks in the 2020 cycle rest on the 2021 survey alone, and abortion in the 2012 cycle rests on the 2014 and 2015 surveys. The survey years behind every point are in the data tables.
Figure 8
The party gap rose on 3 of these 4 issues across presidential cycles and stayed above both place gaps
Gap in points (share taking the Democratic side) by presidential cycle, Democrats and Republicans in deep counties; four issues; CES surveys 2006 to 2021
- Between-party gap
- Place gap, Democrats
- Place gap, Republicans
Show data
| Issue | Series | Presidential cycle | Survey years | Estimate | Low | High | Smallest group, n |
|---|---|---|---|---|---|---|---|
| Path to legal status | Between-party gap | 2004 | 2007 | 27.8 | 20.8 | 33.1 | 367 |
| Path to legal status | Place gap, Democrats | 2004 | 2007 | 11.2 | 2.2 | 18.4 | 367 |
| Path to legal status | Place gap, Republicans | 2004 | 2007 | 1.9 | −3.5 | 9.3 | 367 |
| Path to legal status | Between-party gap | 2008 | 2010 and 2011 | 32.1 | 29.3 | 34.9 | 2,932 |
| Path to legal status | Place gap, Democrats | 2008 | 2010 and 2011 | 9.2 | 4.2 | 14.8 | 2,932 |
| Path to legal status | Place gap, Republicans | 2008 | 2010 and 2011 | 2.7 | −0.6 | 6.9 | 2,932 |
| Path to legal status | Between-party gap | 2012 | 2012 to 2015 | 35.7 | 32.9 | 38.1 | 6,215 |
| Path to legal status | Place gap, Democrats | 2012 | 2012 to 2015 | 9.0 | 5.5 | 12.5 | 6,215 |
| Path to legal status | Place gap, Republicans | 2012 | 2012 to 2015 | 3.8 | 0.2 | 7.8 | 6,215 |
| Path to legal status | Between-party gap | 2016 | 2016 and 2017 and 2019 | 40.0 | 37.7 | 42.0 | 5,394 |
| Path to legal status | Place gap, Democrats | 2016 | 2016 and 2017 and 2019 | 1.9 | 0.0 | 3.7 | 5,394 |
| Path to legal status | Place gap, Republicans | 2016 | 2016 and 2017 and 2019 | 3.5 | −0.4 | 7.5 | 5,394 |
| Path to legal status | Between-party gap | 2020 | 2020 and 2021 | 43.3 | 41.4 | 45.3 | 4,267 |
| Path to legal status | Place gap, Democrats | 2020 | 2020 and 2021 | 1.7 | −0.2 | 3.6 | 4,267 |
| Path to legal status | Place gap, Republicans | 2020 | 2020 and 2021 | 2.5 | −0.4 | 5.2 | 4,267 |
| Border security | Between-party gap | 2004 | 2007 | 30.1 | 20.5 | 37.9 | 367 |
| Border security | Place gap, Democrats | 2004 | 2007 | 6.2 | −2.6 | 12.7 | 367 |
| Border security | Place gap, Republicans | 2004 | 2007 | −2.8 | −11.5 | 8.4 | 367 |
| Border security | Between-party gap | 2008 | 2010 and 2011 | 29.4 | 27.0 | 31.4 | 2,932 |
| Border security | Place gap, Democrats | 2008 | 2010 and 2011 | 9.5 | 5.9 | 13.3 | 2,932 |
| Border security | Place gap, Republicans | 2008 | 2010 and 2011 | 2.3 | −1.5 | 5.7 | 2,932 |
| Border security | Between-party gap | 2012 | 2012 to 2015 | 33.2 | 30.6 | 35.9 | 6,215 |
| Border security | Place gap, Democrats | 2012 | 2012 to 2015 | 6.1 | 2.4 | 9.6 | 6,215 |
| Border security | Place gap, Republicans | 2012 | 2012 to 2015 | 3.7 | 0.1 | 6.9 | 6,215 |
| Border security | Between-party gap | 2016 | 2016 and 2017 and 2019 | 41.0 | 38.9 | 42.9 | 5,396 |
| Border security | Place gap, Democrats | 2016 | 2016 and 2017 and 2019 | 6.8 | 3.4 | 10.2 | 5,396 |
| Border security | Place gap, Republicans | 2016 | 2016 and 2017 and 2019 | 4.0 | 1.7 | 6.9 | 5,396 |
| Border security | Between-party gap | 2020 | 2020 and 2021 | 46.8 | 45.1 | 48.8 | 4,271 |
| Border security | Place gap, Democrats | 2020 | 2020 and 2021 | 7.5 | 3.4 | 10.8 | 4,271 |
| Border security | Place gap, Republicans | 2020 | 2020 and 2021 | 4.6 | 2.0 | 6.6 | 4,271 |
| Repeal the ACA | Between-party gap | 2012 | 2012 to 2015 | 53.8 | 51.8 | 55.8 | 6,062 |
| Repeal the ACA | Place gap, Democrats | 2012 | 2012 to 2015 | 8.6 | 5.5 | 11.6 | 6,062 |
| Repeal the ACA | Place gap, Republicans | 2012 | 2012 to 2015 | 2.3 | −0.4 | 4.7 | 6,062 |
| Repeal the ACA | Between-party gap | 2016 | 2016 to 2019 | 59.5 | 58.0 | 61.5 | 8,476 |
| Repeal the ACA | Place gap, Democrats | 2016 | 2016 to 2019 | 1.2 | −1.8 | 4.0 | 8,476 |
| Repeal the ACA | Place gap, Republicans | 2016 | 2016 to 2019 | 5.2 | 3.4 | 6.9 | 8,476 |
| Repeal the ACA | Between-party gap | 2020 | 2020 and 2021 | 55.8 | 54.2 | 57.7 | 4,262 |
| Repeal the ACA | Place gap, Democrats | 2020 | 2020 and 2021 | 0.2 | −2.8 | 3.0 | 4,262 |
| Repeal the ACA | Place gap, Republicans | 2020 | 2020 and 2021 | 4.5 | 1.7 | 7.0 | 4,262 |
| Abortion legal | Between-party gap | 2012 | 2014 and 2015 | 39.6 | 36.9 | 42.3 | 3,052 |
| Abortion legal | Place gap, Democrats | 2012 | 2014 and 2015 | 14.6 | 9.6 | 19.2 | 3,052 |
| Abortion legal | Place gap, Republicans | 2012 | 2014 and 2015 | 13.8 | 9.0 | 17.8 | 3,052 |
| Abortion legal | Between-party gap | 2016 | 2016 to 2019 | 46.5 | 44.3 | 49.2 | 8,493 |
| Abortion legal | Place gap, Democrats | 2016 | 2016 to 2019 | 9.2 | 5.6 | 12.7 | 8,493 |
| Abortion legal | Place gap, Republicans | 2016 | 2016 to 2019 | 15.6 | 11.3 | 19.3 | 8,493 |
| Abortion legal | Between-party gap | 2020 | 2020 and 2021 | 53.0 | 50.4 | 55.7 | 4,273 |
| Abortion legal | Place gap, Democrats | 2020 | 2020 and 2021 | 4.9 | 2.0 | 8.2 | 4,273 |
| Abortion legal | Place gap, Republicans | 2020 | 2020 and 2021 | 12.0 | 7.5 | 15.7 | 4,273 |
Figure 9 gives the change for all 1212 policy questionsEstimandcount of issuesWeightsnone (count)Populationthe CES policy questions used in the chapterPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study issues, grouped by the span of cycles over which each was asked. The party gap rose on 88 issuesEstimandcount of issuesWeightsnone (count)Populationissues whose party gap rose between the first and last cycle, with an interval above zeroPeriodCES cyclesSourceCooperative Election Study of them with an interval above zero. It fell on universal background checks, where the change is −3.3 (95% CI −6.0 to −0.7)−3.3 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandchange in the party gap from the first to the last cycle in which the issue was askedInterval95% CI −6.0 to −0.7n35,013Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES cycles 2012 to 2020SourceCooperative Election Study points, and the interval includes zero on 33 issuesEstimandcount of issuesWeightsnone (count)Populationissues whose party gap change between the first and last cycle has an interval that includes zeroPeriodCES cyclesSourceCooperative Election Study: legal gay marriage, repeal of the ACA and cutting legal immigration. The issues asked over the longest span, border security and a path to legal status, have the widest intervals: between the 2004 and 2020 cycles the party gap rose by +16.7+16.7 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandchange in the party gap from the first to the last cycle in which the issue was askedInterval95% CI 9.4 to 26.0n34,077Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES cycles 2004 to 2020SourceCooperative Election Study points on border security and +15.5+15.5 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandchange in the party gap from the first to the last cycle in which the issue was askedInterval95% CI 10.2 to 22.9n34,074Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES cycles 2004 to 2020SourceCooperative Election Study points on a path to legal status. Between the 2012 and 2020 cycles it rose by +13.4+13.4 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandchange in the party gap from the first to the last cycle in which the issue was askedInterval95% CI 9.8 to 17.0n52,266Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES cycles 2012 to 2020SourceCooperative Election Study points on abortion and +10.3+10.3 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandchange in the party gap from the first to the last cycle in which the issue was askedInterval95% CI 7.6 to 13.4n56,992Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans (three-point party identification, leaners excluded) in counties with a two-party presidential margin of 20 points or morePeriodCES cycles 2012 to 2020SourceCooperative Election Study points on the assault weapons ban.
Figure 9
The party gap rose on 8 of 12 issues over spans that differ by issue, and fell on background checks
Change in the between-party gap in points (share taking the Democratic side), first to last presidential cycle in which each issue was asked, grouped by span; Democrats and Republicans in deep counties; CES surveys 2006 to 2021
Cycles 2004 to 2020
Cycles 2012 to 2020
Cycles 2012 to 2016
Cycles 2016 to 2020
Change in the party gap (points)
Show data
| Issue | Cycles | Survey years, first cycle | Survey years, last cycle | Party gap change | Low | High | Party gap change per cycle | Place gap change | Place gap change, low | Place gap change, high | Smaller endpoint, n |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Border security | Cycles 2004 to 2020 | 2007 | 2020 and 2021 | +16.7 | +9.4 | +26.0 | +4.2 | +4.3 | −2.6 | +10.6 | 2,767 |
| Path to legal status | Cycles 2004 to 2020 | 2007 | 2020 and 2021 | +15.5 | +10.2 | +22.9 | +3.9 | −4.5 | −9.8 | +0.9 | 2,767 |
| Abortion legal | Cycles 2012 to 2020 | 2014 and 2015 | 2020 and 2021 | +13.4 | +9.8 | +17.0 | +6.7 | −5.8 | −8.7 | −2.4 | 20,940 |
| Assault weapons ban | Cycles 2012 to 2020 | 2013 to 2015 | 2020 and 2021 | +10.3 | +7.6 | +13.4 | +5.2 | −1.5 | −4.5 | +1.4 | 25,669 |
| Concealed carry | Cycles 2012 to 2020 | 2013 to 2015 | 2020 and 2021 | +6.8 | +3.8 | +10.2 | +3.4 | −0.9 | −3.7 | +1.8 | 25,716 |
| EPA regulates CO2 | Cycles 2012 to 2020 | 2014 and 2015 | 2020 and 2021 | +3.5 | +0.3 | +7.2 | +1.8 | −1.0 | −4.4 | +2.3 | 20,800 |
| Repeal the ACA | Cycles 2012 to 2020 | 2012 to 2015 | 2020 and 2021 | +2.0 | 0.0 | +4.1 | +1.0 | −3.1 | −5.3 | −0.9 | 31,281 |
| Background checks | Cycles 2012 to 2020 | 2013 to 2015 | 2021 | −3.3 | −6.0 | −0.7 | −1.6 | −1.3 | −3.6 | +1.1 | 9,240 |
| Gay marriage | Cycles 2012 to 2016 | 2012 to 2015 | 2016 | −2.1 | −4.3 | +0.5 | −2.1 | −4.2 | −6.4 | −1.8 | 24,606 |
| Border wall | Cycles 2016 to 2020 | 2017 and 2018 | 2020 and 2021 | +6.1 | +4.1 | +8.3 | +6.1 | −0.3 | −2.2 | +1.6 | 29,562 |
| Medicare for All | Cycles 2016 to 2020 | 2018 and 2019 | 2020 and 2021 | +5.7 | +3.2 | +8.5 | +5.7 | −1.6 | −4.1 | +0.8 | 29,844 |
| Cut immigration | Cycles 2016 to 2020 | 2018 and 2019 | 2020 | −0.5 | −3.0 | +2.1 | −0.5 | +0.2 | −2.0 | +2.4 | 22,064 |
The average place gap changed by more than sampling error on 33 issuesEstimandcount of issues whose change has an interval that excludes zeroWeightsnone (count)Populationissues whose average place gap changed by more than sampling error between the first and last cyclePeriodCES cyclesSourceCooperative Election Study of the 1212 policy questionsEstimandcount of issuesWeightsnone (count)Populationthe CES policy questions used in the chapterPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study issues, and each change is a fall: −5.8 (95% CI −8.7 to −2.4)−5.8 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandchange in the place gap averaged over the two partiesInterval95% CI −8.7 to −2.4n52,266Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans in deep countiesPeriodCES cycles 2012 to 2020SourceCooperative Election Study points on abortion, −4.2 (95% CI −6.4 to −1.8)−4.2 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandchange in the place gap averaged over the two partiesInterval95% CI −6.4 to −1.8n67,144Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans in deep countiesPeriodCES cycles 2012 to 2016SourceCooperative Election Study on legal gay marriage and −3.1 (95% CI −5.3 to −0.9)−3.1 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandchange in the place gap averaged over the two partiesInterval95% CI −5.3 to −0.9n73,114Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans in deep countiesPeriodCES cycles 2012 to 2020SourceCooperative Election Study on repeal of the ACA. With the 2014 answers to the ACA question dropped instead of reversed, the change on repeal of the ACA is −0.7 (95% CI −3.0 to 1.6)−0.7 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandrepeal of the ACA, change in the place gap averaged over the two parties from the 2012 to the 2020 cycle, with the 2014 answers dropped instead of reversedInterval95% CI −3.0 to 1.6n73,114Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans in deep countiesPeriodCES cycles 2012 to 2020 without 2014SourceCooperative Election Study points, and its interval includes zero. The fall on abortion is mostly a Democratic one: the Democratic place gap goes from 14.614.6 points (difference in the share taking the Democratic side, on a 0 to 100 scale)EstimandDemocratic place gap on abortionInterval95% CI 9.6 to 19.2n20,940Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats in deep countiesPeriodCES surveys pooled in the 2012 presidential cycleSourceCooperative Election Study points in the 2012 cycle to 4.94.9 points (difference in the share taking the Democratic side, on a 0 to 100 scale)EstimandDemocratic place gap on abortionInterval95% CI 2.0 to 8.2n31,326Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats in deep countiesPeriodCES surveys pooled in the 2020 presidential cycleSourceCooperative Election Study points in the 2020 cycle, and the Republican gap from 13.813.8 points (difference in the share taking the Democratic side, on a 0 to 100 scale)EstimandRepublican place gap on abortionInterval95% CI 9.0 to 17.8n20,940Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationRepublicans in deep countiesPeriodCES surveys pooled in the 2012 presidential cycleSourceCooperative Election Study to 12.012.0 points (difference in the share taking the Democratic side, on a 0 to 100 scale)EstimandRepublican place gap on abortionInterval95% CI 7.5 to 15.7n31,326Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationRepublicans in deep countiesPeriodCES surveys pooled in the 2020 presidential cycleSourceCooperative Election Study points. The Democratic place gap on a path to legal status changed by −7.1 (95% CI −10.3 to −4.2)−7.1 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandchange in the Democratic place gap on a path to legal status between cyclesInterval95% CI −10.3 to −4.2n81,377Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats in deep countiesPeriodCES cycles 2012 to 2016SourceCooperative Election Study points between the 2012 and 2016 cycles, from 9.09.0 points (difference in the share taking the Democratic side, on a 0 to 100 scale)EstimandDemocratic place gap on a path to legal statusInterval95% CI 5.5 to 12.5n42,924Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats in deep countiesPeriodCES surveys pooled in the 2012 presidential cycleSourceCooperative Election Study to 1.91.9 points (difference in the share taking the Democratic side, on a 0 to 100 scale)EstimandDemocratic place gap on a path to legal statusInterval95% CI 0.0 to 3.7n38,453Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats in deep countiesPeriodCES surveys pooled in the 2016 presidential cycleSourceCooperative Election Study points, and was 1.71.7 points (difference in the share taking the Democratic side, on a 0 to 100 scale)EstimandDemocratic place gap on a path to legal statusInterval95% CI −0.2 to 3.6n31,307Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats in deep countiesPeriodCES surveys pooled in the 2020 presidential cycleSourceCooperative Election Study points in the 2020 cycle, a change of −0.2 (95% CI −2.6 to 2.2)−0.2 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandchange in the Democratic place gap on a path to legal status between cyclesInterval95% CI −2.6 to 2.2n69,760Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats in deep countiesPeriodCES cycles 2016 to 2020SourceCooperative Election Study points from 2016. The steps before 2012 have intervals that include zero.
A second survey gives ratios of the same order
The CES records the respondent's county. The American National Election Studies (ANES) record only the state, so a check with ANES uses a coarser place. Figure 10 repeats the calculation for strong and not very strong partisans in deep states, meaning states with a two-party presidential margin of 2020 points of two-party marginEstimanda county is deep red or deep blue at this margin or moreWeightsnone (count)Populationcounty classificationPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study points or more. The four groups of party by state type hold 3,7523,752 respondentsEstimandsmallest count of respondents in the four cells behind any of the five ANES measuresWeightsnone (count)Populationstrong and not very strong Democrats and Republicans in states with a two-party presidential margin of 20 points or morePeriodANES waves 2012, 2016, 2020 and 2024SourceANES Cumulative Data File to 4,4104,410 respondentsEstimandlargest count of respondents in the four cells behind any of the five ANES measuresWeightsnone (count)Populationstrong and not very strong Democrats and Republicans in states with a two-party presidential margin of 20 points or morePeriodANES waves 2012, 2016, 2020 and 2024SourceANES Cumulative Data File respondents in all, depending on the measure, and 3,9333,933 respondentsEstimandcount of respondents in the four cells behind the ideology scaleWeightsnone (count)Populationstrong and not very strong Democrats and Republicans in states with a two-party presidential margin of 20 points or morePeriodANES waves 2012, 2016, 2020 and 2024SourceANES Cumulative Data File on the liberal-conservative scale.ANES states are known for only part of the 2024 sample, and the gun question was not asked in 2024. The ANES partisans are those who call themselves strong or not very strong Democrats or Republicans, which matches the three-point CES measure. Leaners are excluded. The liberal-conservative scale, rescaled so that 100100 pointsEstimanddefinition of the scaleWeightsnone (count)Populationthe top of the scale on which every issue is coded, where 100 is the side that Democrats take more oftenPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study is the most liberal answer, has a party gap of 41.341.3 points (difference in the liberal-conservative index, liberal = 100, on a 0 to 100 scale)Estimandparty gap at the state level; state-cluster bootstrap intervalInterval95% CI 38.8 to 43.6n3,933Weightsweight (VCF0009z, ANES cumulative full-sample weight)Populationstrong and not very strong Democrats and Republicans in states with a two-party presidential margin of 20 points or morePeriodANES waves 2012, 2016, 2020 and 2024SourceANES Cumulative Data File points and a place gap of 4.74.7 points (difference in the liberal-conservative index, liberal = 100, on a 0 to 100 scale)Estimandplace gap at the state level; state-cluster bootstrap intervalInterval95% CI 1.7 to 8.8n3,933Weightsweight (VCF0009z, ANES cumulative full-sample weight)Populationstrong and not very strong Democrats and Republicans in states with a two-party presidential margin of 20 points or morePeriodANES waves 2012, 2016, 2020 and 2024SourceANES Cumulative Data File points, a ratio of 8.8 (95% CI 4.7 to 24.2)8.8 ratio (party gap divided by place gap)Estimandparty gap divided by place gap at the state level; state-cluster bootstrap intervalInterval95% CI 4.7 to 24.2n3,933Weightsweight (VCF0009z, ANES cumulative full-sample weight)Populationstrong and not very strong Democrats and Republicans in states with a two-party presidential margin of 20 points or morePeriodANES waves 2012, 2016, 2020 and 2024SourceANES Cumulative Data File. The ratios on the ANES issue questions have smaller point estimates: 3.23.2 ratio (party gap divided by place gap)Estimandparty gap divided by place gap at the state levelInterval95% CI 2.3 to 6.5n3,752Weightsweight (VCF0009z, ANES cumulative full-sample weight)Populationstrong and not very strong Democrats and Republicans in states with a two-party presidential margin of 20 points or morePeriodANES waves 2012, 2016, 2020 and 2024SourceANES Cumulative Data File for making it harder to buy a gun, 2.92.9 ratio (party gap divided by place gap)Estimandparty gap divided by place gap at the state levelInterval95% CI 1.4 to 9.0n4,005Weightsweight (VCF0009z, ANES cumulative full-sample weight)Populationstrong and not very strong Democrats and Republicans in states with a two-party presidential margin of 20 points or morePeriodANES waves 2012, 2016, 2020 and 2024SourceANES Cumulative Data File for not decreasing immigration, 2.82.8 ratio (party gap divided by place gap)Estimandparty gap divided by place gap at the state levelInterval95% CI 1.1 to 8.9n3,889Weightsweight (VCF0009z, ANES cumulative full-sample weight)Populationstrong and not very strong Democrats and Republicans in states with a two-party presidential margin of 20 points or morePeriodANES waves 2012, 2016, 2020 and 2024SourceANES Cumulative Data File for a law against job discrimination and 2.5 (95% CI 1.5 to 4.2)2.5 ratio (party gap divided by place gap)Estimandparty gap divided by place gap at the state level; state-cluster bootstrap intervalInterval95% CI 1.5 to 4.2n4,410Weightsweight (VCF0009z, ANES cumulative full-sample weight)Populationstrong and not very strong Democrats and Republicans in states with a two-party presidential margin of 20 points or morePeriodANES waves 2012, 2016, 2020 and 2024SourceANES Cumulative Data File for abortion. Among these questions only the interval for abortion lies below the interval for the ideology scale, as the ratio tab of the figure shows.
Figure 10
In both surveys the party gap is larger than the place gap on every measure
Party gap and place gap at the state level, and their ratio, by measure; ANES waves 2012 to 2024 and CES survey years 2013 to 2021
The party gap is larger than the place gap on every measure in both surveys
Gap in points on a 0 to 100 scale, strong and not very strong partisans in deep states; ANES waves 2012 to 2024 and CES survey years 2013 to 2021
- Place gap
- Party gap
The open dot is the place gap (deep-blue minus deep-red states within a party) and the solid dot is the party gap (Democrats minus Republicans within a state type). Issue rows are the share taking the Democratic side; the ideology row is the liberal-conservative scale rescaled so that liberal is 100. A deep state has a two-party presidential margin of 20 points or more. The last two rows are the CES averages at the state and county levels.
Show data
| Measure | Place level | Party gap | Party gap, low | Party gap, high | Place gap | Place gap, low | Place gap, high | Respondents |
|---|---|---|---|---|---|---|---|---|
| ANES ideology | state | 41.3 | 38.8 | 43.6 | 4.7 | 1.7 | 8.8 | 3,933 |
| ANES abortion | state | 42.9 | 37.7 | 47.6 | 17.4 | 11.2 | 28.2 | 4,410 |
| ANES gun purchase | state | 44.1 | 41.0 | 50.0 | 13.8 | 6.7 | 19.3 | 3,752 |
| ANES immigration | state | 27.7 | 23.0 | 30.5 | 9.4 | 2.9 | 18.0 | 4,005 |
| ANES job discrimination | state | 16.5 | 11.5 | 19.6 | 6.0 | 1.6 | 13.2 | 3,889 |
| CES abortion | state | 46.4 | 43.7 | 48.7 | 14.3 | 11.2 | 18.9 | 113,602 |
| CES all issues, state | state | 43.3 | 41.2 | 45.2 | 5.5 | 3.3 | 8.2 | 67,860 |
| CES all issues, county | county | 43.1 | 41.8 | 44.5 | 5.6 | 4.7 | 6.6 | 118,638 |
Abortion is the one question asked in both surveys. At the state level, ANES gives a party gap of 42.942.9 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandparty gap at the state level; state-cluster bootstrap intervalInterval95% CI 37.7 to 47.6n4,410Weightsweight (VCF0009z, ANES cumulative full-sample weight)Populationstrong and not very strong Democrats and Republicans in states with a two-party presidential margin of 20 points or morePeriodANES waves 2012, 2016, 2020 and 2024SourceANES Cumulative Data File points and a place gap of 17.417.4 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandplace gap at the state level; state-cluster bootstrap intervalInterval95% CI 11.2 to 28.2n4,410Weightsweight (VCF0009z, ANES cumulative full-sample weight)Populationstrong and not very strong Democrats and Republicans in states with a two-party presidential margin of 20 points or morePeriodANES waves 2012, 2016, 2020 and 2024SourceANES Cumulative Data File points, and the CES gives 46.446.4 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandabortion always legal, state levelInterval95% CI 43.7 to 48.7n113,602Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans in states with a two-party presidential margin of 20 points or morePeriodCES survey years 2014 to 2021SourceCooperative Election Study and 14.314.3 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandabortion always legal, state levelInterval95% CI 11.2 to 18.9n113,602Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans in states with a two-party presidential margin of 20 points or morePeriodCES survey years 2014 to 2021SourceCooperative Election Study, a ratio of 3.2 (95% CI 2.3 to 4.3)3.2 ratio (party gap divided by place gap)Estimandabortion always legal, state levelInterval95% CI 2.3 to 4.3n113,602Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans in states with a two-party presidential margin of 20 points or morePeriodCES survey years 2014 to 2021SourceCooperative Election Study against 2.52.5 ratio (party gap divided by place gap)Estimandparty gap divided by place gap at the state level; state-cluster bootstrap intervalInterval95% CI 1.5 to 4.2n4,410Weightsweight (VCF0009z, ANES cumulative full-sample weight)Populationstrong and not very strong Democrats and Republicans in states with a two-party presidential margin of 20 points or morePeriodANES waves 2012, 2016, 2020 and 2024SourceANES Cumulative Data File in ANES. Over all issues at the state level, the CES party gap is 43.343.3 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandaverage over the issues at the state levelInterval95% CI 41.2 to 45.2n67,860Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans in states with a two-party presidential margin of 20 points or morePeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study points, the place gap 5.55.5 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandaverage over the issues at the state levelInterval95% CI 3.3 to 8.2n67,860Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans in states with a two-party presidential margin of 20 points or morePeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study points and the ratio 7.9 (95% CI 5.1 to 13.7)7.9 ratio (party gap divided by place gap)Estimandaverage over the issues at the state levelInterval95% CI 5.1 to 13.7n67,860Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans in states with a two-party presidential margin of 20 points or morePeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study, close to the county-level values in Figure 1. The ANES intervals are wide because each group of party by state type holds a limited number of states and respondents, and the two surveys differ in questions, years and level of place. They agree on the order of magnitude of the ratio, and the intervals are too wide to say more.
The party gap does not vary clearly with state partisanship
Figure 11 asks whether the party gap depends on how Democratic or Republican a state is. Each dot is a state, with its party gap averaged over the issues plotted against the state's mean two-party margin. The state party gap averages 45.745.7 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandmean over states of the state party gap averaged over the issuesn49Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans in each state, states with at least 50 of each on an issuePeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study points, with a standard deviationStandard deviationA measure of how far values typically fall from their average. A larger standard deviation means the values are more spread out. of 5.45.4 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandstandard deviation across states of the state party gapn49Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans in each state, states with at least 50 of each on an issuePeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election StudyNoteThe spread includes sampling error in each state's estimate. No interval. points across 4949 statesEstimandcount of states in the scatterWeightsnone (count)Populationstates with enough respondents on at least ten issuesPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study states, and that spread includes the sampling error of each state's estimate, whose standard error is 1.31.3 points (difference in the share taking the Democratic side, on a 0 to 100 scale)Estimandmedian across states of the standard error of the state party gap averaged over the issues (Taylor linearisation, respondents treated as independent within a state)n49Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans in each state, states with at least 50 of each on an issuePeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study points in the median state. The District of Columbia is not plotted because too few issues have enough respondents of each party there. The fitted slope is −0.5 (95% CI −1.3 to 0.4)−0.5 points of party gap per 10 points of state Democratic marginEstimandleast squares slope of the state party gap on the state's mean two-party margin, times 10; bootstrap over statesInterval95% CI −1.3 to 0.4n49Weightsweight_cumulative (CES cumulative weight; each survey year carries the same total weight)PopulationDemocrats and Republicans in each state, states with at least 50 of each on an issuePeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study points of party gap per 1010 points of two-party marginEstimandstep in the state margin used for the slopeWeightsnone (count)Populationslope of the state party gap on the state marginPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study points of Democratic margin. The point estimate is a fall in the gap as states become more Democratic, and the interval also includes no change.
Figure 11
The party gap averages 45.7 points across states and shows no clear relation to a state's partisanship
State party gap averaged over the issues, in points, against the state's mean two-party presidential margin; Democrats and Republicans; CES survey years 2013 to 2021
State two-party margin (points, Democratic minus Republican)
Show data
| State | State two-party margin | Party gap | Standard error | Party gap, low | Party gap, high | Respondents per issue |
|---|---|---|---|---|---|---|
| AL | −26.3 | 41.5 | 1.3 | 38.9 | 44.1 | 2,259 |
| AZ | −4.6 | 49.9 | 1.0 | 48.0 | 51.9 | 3,836 |
| AR | −27.1 | 41.0 | 1.7 | 37.7 | 44.2 | 1,287 |
| CA | +28.9 | 44.1 | 0.6 | 43.0 | 45.2 | 15,069 |
| CO | +7.3 | 53.3 | 1.2 | 51.0 | 55.7 | 2,446 |
| CT | +16.6 | 41.3 | 1.8 | 37.8 | 44.8 | 1,569 |
| DE | +15.7 | 43.0 | 2.4 | 38.3 | 47.8 | 650 |
| FL | −1.0 | 41.8 | 0.6 | 40.7 | 42.9 | 12,328 |
| GA | −4.9 | 42.6 | 0.9 | 40.9 | 44.3 | 5,087 |
| HI | +36.0 | 31.5 | 3.2 | 25.2 | 37.7 | 479 |
| ID | −34.3 | 51.2 | 2.2 | 46.8 | 55.6 | 761 |
| IL | +17.6 | 43.5 | 0.8 | 41.8 | 45.1 | 6,436 |
| IN | −16.1 | 44.4 | 1.0 | 42.4 | 46.4 | 3,457 |
| IA | −4.0 | 47.9 | 1.3 | 45.3 | 50.5 | 1,539 |
| KS | −20.7 | 49.8 | 1.6 | 46.7 | 52.9 | 1,215 |
| KY | −27.6 | 39.5 | 1.4 | 36.9 | 42.2 | 2,683 |
| LA | −19.1 | 38.0 | 1.6 | 34.9 | 41.0 | 1,758 |
| ME | +8.5 | 49.2 | 2.1 | 45.1 | 53.3 | 789 |
| MD | +28.9 | 46.7 | 1.0 | 44.8 | 48.7 | 3,066 |
| MA | +28.3 | 45.8 | 1.4 | 43.1 | 48.6 | 2,552 |
| MI | +3.8 | 44.5 | 1.0 | 42.6 | 46.5 | 4,873 |
| MN | +5.0 | 52.2 | 1.1 | 50.0 | 54.4 | 2,676 |
| MS | −15.8 | 37.1 | 1.8 | 33.7 | 40.6 | 1,162 |
| MO | −15.4 | 48.1 | 1.0 | 46.1 | 50.2 | 3,397 |
| MT | −18.6 | 56.2 | 2.2 | 51.9 | 60.5 | 502 |
| NE | −23.5 | 52.7 | 1.6 | 49.6 | 55.9 | 950 |
| NV | +4.0 | 46.4 | 1.6 | 43.3 | 49.5 | 1,851 |
| NH | +3.7 | 50.5 | 2.2 | 46.2 | 54.8 | 692 |
| NJ | +16.0 | 42.0 | 0.9 | 40.1 | 43.8 | 4,431 |
| NM | +10.1 | 49.3 | 1.9 | 45.5 | 53.1 | 1,018 |
| NY | +27.8 | 38.9 | 0.7 | 37.6 | 40.3 | 10,028 |
| NC | −2.7 | 44.9 | 0.8 | 43.2 | 46.5 | 4,781 |
| ND | −31.9 | 48.4 | 3.2 | 42.1 | 54.6 | 313 |
| OH | −4.4 | 42.3 | 0.7 | 40.9 | 43.8 | 6,810 |
| OK | −36.0 | 47.4 | 1.7 | 44.1 | 50.7 | 1,528 |
| OR | +13.2 | 57.3 | 1.1 | 55.2 | 59.4 | 2,468 |
| PA | +1.8 | 43.3 | 0.6 | 42.1 | 44.5 | 9,050 |
| RI | +21.5 | 39.6 | 3.4 | 33.0 | 46.2 | 404 |
| SC | −12.8 | 43.4 | 1.1 | 41.2 | 45.7 | 2,259 |
| SD | −26.2 | 52.7 | 2.5 | 47.8 | 57.6 | 413 |
| TN | −24.3 | 45.5 | 1.2 | 43.2 | 47.9 | 3,129 |
| TX | −10.5 | 43.4 | 0.6 | 42.2 | 44.6 | 10,983 |
| UT | −32.2 | 45.1 | 1.7 | 41.7 | 48.5 | 1,215 |
| VT | +34.0 | 41.2 | 3.9 | 33.6 | 48.8 | 298 |
| VA | +6.1 | 45.5 | 1.0 | 43.6 | 47.3 | 4,569 |
| WA | +17.3 | 53.2 | 1.1 | 51.0 | 55.5 | 3,329 |
| WV | −37.4 | 37.8 | 1.8 | 34.2 | 41.3 | 1,078 |
| WI | +2.2 | 48.4 | 0.9 | 46.5 | 50.2 | 3,156 |
| WY | −47.1 | 54.4 | 3.0 | 48.5 | 60.4 | 265 |
Hopkins argued that American political behavior has nationalized, with voters more engaged with national politics than with the politics of places nearer home [1]. If that account holds, the party gap should depend little on a state's partisanship, and the flat slope is consistent with it, though the interval also allows a modest fall. This chapter does not test the account, and a flat relation across states says nothing about influence inside a county or a neighborhood, which Chapter 15.3, Variation in opinion within places (planned) takes up.
What these data cannot show
The place gap is a difference between respondents who live in different counties. It is not an estimate of what a county does to a person. People choose where to live, and the respondents who live in deep-blue counties may differ from those in deep-red counties in ways that survey questions on education, race, age and gender do not capture. Mummolo and Nall ask why partisans do not sort more by place and study the constraints on political segregation [2]. Earlier work on political context, from a 1984 survey in South Bend, Indiana, found that people build discussion networks that match their own views, that the political composition of their social context limits this, and that the interaction favors the local majority [3]. A cross-section cannot separate influence from selection, and evidence on people who move is the design that can. Chapter 15.6, Movers and opinion change (planned) takes up that design.
The party gap is not an estimate of what a party does to an opinion either. Party identification and issue positions shape each other, and party has taken on other identities, so a Democrat and a Republican also differ in race, religion and much else [4]. The two gaps are also measured on 1212 policy questionsEstimandcount of issuesWeightsnone (count)Populationthe CES policy questions used in the chapterPeriodCES survey years 2013 to 2021, each issue in the years it was askedSourceCooperative Election Study questions that were available in the survey, on guns, immigration, abortion, marriage, health care and climate. Their ratio would change with a different set of issues, and the ceiling of a share on a yes-or-no question limits how large a gap can be. The policy questions end in 2021, so the chapter says nothing about later years.
The county is one level of place. A finer level, such as a neighborhood, could show larger place gaps, and a coarser one, such as the state, shows the ANES and CES gaps above. The chapter does not measure the variation in opinion among people who live in one place, which Chapter 15.3, Variation in opinion within places (planned) measures, or the share of partisans who live where their party loses, which Chapter 15.4, Partisans in the other party's territory (planned) measures. Place-specific contexts such as recent immigration may matter more for some issues than the county margin does, as Chapter 15.2, Immigration and local context (planned) examines, and the change in a county's vote over time has its own accounting in Chapter 15.5, Composition and behavior in county change (planned).
The intervals describe sampling variation in an opt-in online panel. They treat the states as an independent sample of clusters and the survey weights as correct, and they do not cover error from who joins the panel or from question wording. With few clusters, standard cluster-robust tests can over-reject [5], and the resampling method used here is simpler than the one that paper proposes. The ratio is uncertain where the place gap is small.
Data sources
- Cooperative Election StudyCooperative Election Study cumulative common content, 2006-2021 policy items, party identification and county FIPSYears: 2006-2024 (every year; self-reported turnout is available in the 10 even years) · Weights: weight_cumulative · License: See the provider's terms of use.
- County election returnsCounty presidential returns 2004-2020 (repaired file), two-party marginYears: President 1868-2024 (40 elections); House and Senate 1990-2024 · Weights: none (full counts) · License: The Heideman file is CC BY 4.0 (doi:10.5281/zenodo.22976553), but the state records behind it keep their own terms, and the sites of Florida, Indiana, Colorado and Wisconsin restrict reuse.
- State presidential returnsState presidential returns 1976-2024, two-party marginYears: 1976-2024 (13 elections) · Weights: none (full counts) · License: See the provider's terms of use.
- ANES Cumulative Data FileANES Time Series Cumulative Data File, waves 2012-2024, state identifier, issue itemsYears: 1948-2024 (33 study years; even years only after 2004; no 2006, 2010 or 2014 study) · Weights: weight (VCF0009z) · License: Free download after accepting the ANES terms of use; cite the release.
Methods
Sample: Cooperative Election Study interviews in 2013 to 2021 (2006 to 2021 for the trend by presidential cycle) that could be matched to a county with presidential returns, Alaska excluded, with a positive weight: 333,335 interviews in 2013 to 2021, of which 320,988 are in a party group used here and 118,638 are Democrats or Republicans in deep counties. Coding: in the cumulative file the 2014 answers to the question on repealing the Affordable Care Act have the partisan pattern of the opposite code from the other years (the Republican minus Democratic share supporting repeal is negative in 2014 and positive in every other year), so the 2014 answers are reversed. The guide to the cumulative policy file records that the 2014 question was worded differently from the other years (a vote to repeal, in Congress, after a description of the law, where the adjacent years asked whether the respondent supported or opposed repeal) and that an earlier release of the file had switched the 2014 answers and the current release does not. The guide gives one pooled set of value labels and no year-specific labels for 2014, so the reversal rests on the partisan pattern and on that record, and the original 2014 labels have not been checked against the questionnaire. The build stops if any issue has a Democratic minus Republican gap at or below zero in any survey year, which tests the expected partisan direction and is not an independent check of the coding. Party: the three-point identification, so leaners are outside the Democrats and Republicans; independents are respondents at the middle of the seven-point scale, and leaners are shown apart. Place: the two-party margin of the respondent's county in the most recent presidential election, counting the election of the interview year, from the repaired county returns file; a deep county has a margin of 20 points or more toward one party. Outcomes: 12 yes-or-no policy questions, each oriented so that 100 is the side that Democrats take more often. Weights: weight_cumulative, which gives every survey year the same total weight. Estimator: weighted means in party by county-type cells; the party gap is the Democratic minus Republican difference averaged over deep-red and deep-blue counties, the place gap is the deep-blue minus deep-red difference averaged over Democrats and Republicans, and the ratio is the party gap divided by the place gap. Adjusted place gaps are coefficients on a deep-blue indicator in weighted linear regressions with education, race, age and gender, with and without state fixed effects, and standard errors clustered by state; the adjusted Republican minus Democratic difference is the coefficient on deep-blue by Republican in a regression with every term interacted with party. Intervals: unless stated otherwise, 95% percentile intervals from a bootstrap that resamples whole states (50 clusters, the states and the District of Columbia, 2,000 replicates, seed 12345), with gaps, ratios and medians computed inside each replicate. Respondents in one state share a political environment, so treating them as independent can give intervals that are too narrow; with few clusters even cluster-robust tests can over-reject (Cameron, Gelbach and Miller 2008), and the percentile bootstrap used here is simpler than the wild cluster bootstrap-t of that paper. The exceptions are the adjusted gaps (normal intervals from the clustered regressions), the ANES intervals (a bootstrap over the states in the ANES sample), the band on the state scatter (a bootstrap over the plotted states) and the state intervals in its data table (linearised standard errors). Resampling counties instead of states gives a narrower interval around the ratio of the average gaps, 7.6. These intervals are model based and ignore the design of the online panel. Suppression: a cell needs at least 100 respondents and an effective sample of 100; the smallest cell behind an issue holds 7,157 respondents and none fell below the floor. The state-level check uses the ANES cumulative file for 2012, 2016, 2020 and 2024 (strong and not very strong partisans, respondents with a known state, weight VCF0009z) and the same estimator with deep states, a two-party margin of 20 points or more from the state returns.
References
- Hopkins, Daniel J. (2018). The Increasingly United States: How and Why American Political Behavior Nationalized. University of Chicago Press. press.uchicago.edu/ucp/books/book/chicago/I/bo27596045.html
- Mummolo, Jonathan; Nall, Clayton (2017). Why Partisans Do Not Sort: The Constraints on Political Segregation. The Journal of Politics 79(1): 45-59. doi:10.1086/687569
- Huckfeldt, Robert; Sprague, John (1987). Networks in Context: The Social Flow of Political Information. American Political Science Review 81(4): 1197-1216. www.cambridge.org/core/journals/american-political-science-review/article/abs/networks-in-context-the-social-flow-of-political-information/393FFEC212ECE14C0E0F79715E086D60
- Mason, Lilliana (2018). Uncivil Agreement: How Politics Became Our Identity. University of Chicago Press. press.uchicago.edu/ucp/books/book/chicago/U/bo27527354.html
- Cameron, A. Colin; Gelbach, Jonah B.; Miller, Douglas L. (2008). Bootstrap-Based Improvements for Inference with Clustered Errors. The Review of Economics and Statistics 90(3): 414-427. direct.mit.edu/rest/article/90/3/414/57731/Bootstrap-Based-Improvements-for-Inference-with
How to cite
@misc{singh2026partyandplace,
author = {Singh, Vishal},
title = {Party and place},
year = {2026},
url = {https://vishalsingh.org/politics/party-and-place},
note = {In The Public Mind. Published 30 September 2026.}
}Same question at another grain
These chapters take up the same axis with a different unit of analysis: individuals, places or countries.
- Party and place
- Chapter 1.4, Cohort change in partisan sorting Individuals
- Chapter 15.5, Composition and behavior in county change (planned) Places