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Explaining Vote Choice in 2016: How the Attitudinal Characteristics of Iowans Shaped the Vote for Donald Trump

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Part of the book series: Palgrave Studies in US Elections ((PSUSE))

Abstract

In this chapter, I present a discussion of the academic literature oriented toward presidential elections, Iowa elections, and the 2016 election. The literature is used to theoretically develop models of vote choice using individual-level data. The individual-level findings demonstrate that the 2016 election was not driven solely by white, working-class support. Rather, support for Donald Trump was driven by partisanship, attitudes regarding President Obama’s performance, and hardline positions on immigration. Additionally, educational attainment did not drive vote switching in 2016 either. Vote switching—casting a vote for Obama or a third-party candidate in 2012 and then for Trump in 2016—was both a function of voters’ approval of Obama’s performance as president and their attitudes about race.

I definitely think racism and sexism both played a part at both the state and national level, but I’m less clear on how much of a difference it made. Iowans tend to personally be more conservative on questions of immigration, racial justice, and religious tolerance, but also less inclined to force their personal positions on others. Trump’s campaign was founded on xenophobic anti-immigration rhetoric, so I’m sure there was some percentage of irregular Iowa voters that responded to that. Exit polls showed that voters approved of many of Clinton’s policies but not Clinton herself, and I’m sure sexism played into that, as well.

—Democratic County Party Official from southeast Iowa

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Notes

  1. 1.

    The epigraph at the beginning of this chapter discusses the likelihood of sexism impacting the decisions of Iowa voters as well. There is certainly a theoretical reason to believe that sexism could have played a role in shaping attitudes toward Hillary Clinton and vote choice in 2016 in Iowa. There is evidence from studies of the U.S. population linking sexism and attitudes regarding Clinton (e.g., McThomas and Tesler 2016) and sexism and vote choice in 2016 (e.g., Setzler and Yanus 2018; Valentino et al. 2018a). A dataset with a large sample of Iowa voters that contained a modern sexism battery was not available to the author. A modern sexism battery is available in the VOTER Survey, but the Iowa subset of the overall sample is 82 cases when accounting for missing data (DFVSG 2017). A basic logistic regression model shows that the modern sexism index (α = 0.78) is not a statistically significant predictor of a vote for Trump for white voters in Iowa when controlling for party identification, educational attainment, and gender of the voter. Nor was the modern sexism index a statistically significant predictor of white Iowa voters having a favorable opinion of Hillary Clinton. Due to the small sample size of Iowa voters in the VOTER Survey and the inability to develop a full model of vote choice, a model examining the linkage between sexism and the 2016 election is not reported here. The basic model cited above is available from the author upon request.

  2. 2.

    Two major themes identified from the qualitative data in Chap. 2 were the enthusiasm gap and antipathy toward Hillary Clinton. Unfortunately, the Cooperative Congressional Election Survey did not include measures of favorability or excitement to vote for specific candidates. As a result, these themes cannot be tested at the individual level.

  3. 3.

    A detailed description of methodological approach to collecting the CCES is provided at http://cces.gov.harvard.edu.

  4. 4.

    All data analysis was performed using R and the CCES weight “commonweight_vv_post.” Datasets with recodes, R scripts, and descriptives for the variables are available from the author upon request.

  5. 5.

    The “for all else” category only includes those respondents who provided a candidate’s name for the survey item. It does not include self-reported nonvoters or respondents who refused to answer the question.

  6. 6.

    A vote switch variable was also constructed for Hillary Clinton, but only 11 Iowa respondents reported switching from Romney or a third-party candidate in 2012 to Clinton in 2016 preventing any analysis of vote switching toward Clinton.

  7. 7.

    The inclusion of the modern racism index is a better representation of racial attitudes based upon the narrative of vote switching in Iowa from 2012 to 2016 (i.e., if Iowa voters are racially conservative then why would they have voted for a black candidate in 2008 and 2012?). The narrative is more about viewing the political world through a color-blind lens as opposed to measures of racial resentment which measure antipathy that whites hold toward blacks regarding perceptions of work ethic and entitlement (see Sears and Henry 2003).

  8. 8.

    The CCES does not have a battery of questions regarding economic policy preferences, only the retrospective and prospective assessments of economy. Although the dataset does include an item regarding the use of the military to destroy a terrorist camp, it does not include a comprehensive battery for terrorism either. The dataset does include items about preferences regarding the U.S. response to the Syrian conflict which could be used as a proxy for terrorism policy, but the items were not asked of the entire sample so there is significant missing data in those items.

  9. 9.

    It was asserted in the epigraph at the beginning of this chapter that Iowans are conservative on issues of race and immigration. Looking at the racial attitudes and immigration measures confirms this; however, the differences were not statistically significant. The average score on the racial attitudes measure for all white CCES respondents was 0.351. For white Iowa respondents it was 0.367 (t = 1.67, p = 0.095). The average score on the immigration measure for all white CCES respondents was 0.535 and for white Iowa respondents was 0.560 (t = 1.59, p = 0.112).

  10. 10.

    Each predictor is scaled from 0 to 1. See Sect. 4.1 for a substantive description of the numeric codes for each predictor. The Obama Disapproval and Party ID measures were not included in Fig. 4.1 as they are categorical in nature.

  11. 11.

    A model was run which included the gun rights and abortion measures. The inclusion added no value to the model, the coefficients were not statistically significant, and the remainder of the model was stable compared to the model reported in Table 4.2.

  12. 12.

    The model has a limited number of cases coded 1 on the dependent variable. “Trump Switchers” constituted about 9% of the cases, which in real terms is approximately 41 cases in all. The small number of Trump Switchers in the model prevented disaggregating the modeling by college degree or by party identification to see if there were differences between groups. Additionally, adding predictors to the model will have the effect of disaggregating cases even more creating small cell sizes for certain combinations of predictors and the dependent variable which will lead to elevated standard errors for the coefficients. If statistically significant predictors are identified even with the reduced sample size, the likelihood is very good that the effect is real and generalizable to white Iowa voters.

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Green, A.D. (2020). Explaining Vote Choice in 2016: How the Attitudinal Characteristics of Iowans Shaped the Vote for Donald Trump. In: From the Iowa Caucuses to the White House. Palgrave Studies in US Elections. Palgrave Pivot, Cham. https://doi.org/10.1007/978-3-030-22499-8_4

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