The Forum 2016; 14(4): 385–397
Edward G. Carmines*, Michael J. Ensley* and
Michael W. Wagner*
Ideological Heterogeneity and the Rise of
Donald Trump
DOI 10.1515/for-2016-0036
Abstract: In the days after the 2016 election, a variety of explanations has
been offered to explain Donald Trump’s unique ascendancy in American politics. Scholars have discussed Trump’s appeal to rural voters, his hybrid media
campaign strategy, shifts in voter turnout, Hillary Clinton’s campaign advertising strategy, economic anxiety, differences in sexist and racist attitudes among
Trump voters and so forth. Here, we add another key factor to the conversation:
Trump’s appeal to a smaller, often ignored, segment of the electorate: populist
voters. Building upon our previous work – demonstrating that while American
political elites compete across a single dimension of conflict, the American
people organize their attitudes around two distinct dimensions, one economic
and one social – we use 2008 American National Elections Study (ANES) data and
2016 ANES primary election data to show that populist support for Trump, and
nationalist policies themselves, help us to understand how Trump captured the
Republican nomination and the White House.
Introduction
There are nearly as many explanations for Donald Trump’s victory in the 2016
presidential election as there are electoral votes that Trump captured. Scholars
have pointed to Trump’s ability to capitalize upon the resentment of rural voters
(Cramer 2016), his use of the news media to perform key party coordination functions (Azari 2016), his hybrid-media campaign style of engaging in traditional
press events and non-traditional “tweet storms” to generate coverage (Wells
et al. 2016), his appeal to sexist (Wayne, Valentino, and Ocento 2016) and racist
(Schaffner 2016) voters, his support from those who prefer authoritarian, nationalist leaders (Rahn and Oliver 2016) and the traditional “fundamental” explanations of elections (Masket 2016).
*Corresponding authors: Edward G. Carmines, Department of Political Science, Indiana
University, USA, e-mail:
[email protected]; Michael J. Ensley, Department of Political
Science, Kent State University, USA, e-mail:
[email protected]; and Michael W. Wagner,
School of Journalism and Mass Communication, University of Wisconsin, USA,
e-mail:
[email protected]
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At the 2016 Elections Research Center Election Symposium at the University of
Wisconsin-Madison in December, 2016, scholars from across the US added explanations of “what happened?” to the mix. Erika Franklin Fowler pointed out that
Hillary Clinton followed a non-traditional television advertising strategy of emphasizing the personal characteristics of her opponent rather than her own policy
positions, as most candidates have. Samara Klar revealed evidence that Independents who are high self-monitors refrain from visible, public displays of partisanship (i.e. yard signs) while continuing to vote in partisan ways. Katherine J. Cramer
presented evidence from conversations, conducted after the election with Trump
voters, revealing that many Trump supporters wanted to do something different at
the ballot box, even if they do not expect the new president to be able to keep his
promises. Young Mie Kim investigated the digital micro-targeting experienced by
voters. Barry Burden presented evidence about how gender may have influenced
the vote. Byron Shafer and Regina Wagner argued that the 2016 outcome was part
and parcel of a long-standing pattern of election results going back decades.
We believe that these explanations are extraordinarily useful in helping
scholars, journalists and the public unpack how Donald Trump captured the
White House. Our own perspective, however, offers another explanation to consider: Trump held onto traditional elements of the Republican coalition while
simultaneously appealing to populist voters in a way that modern Republicans
have not been able to do. The evidence we present here, confined to analyses
of the 2008 American National Election Study and the 2016 primary election
season, build upon our work examining how the ideological heterogeneity of the
American electorate helps us understand the conditional mass polarization of
the American electorate (Carmines, Ensley, and Wagner 2011, 2012a,b, 2014). In
short, we show that ideologically populist Americans – voters who have traditionally made up small portions of the Democratic and (especially) Republican
electoral coalitions – have historically held issue preferences that matched the
policy positions expressed by Donald Trump in the 2016 primaries. We further
present evidence from the 2016 primary season that reveals populists were a
far more important part of Donald Trump’s coalition than has been the case for
Republican presidential candidates over the past half century.
Ideological Heterogeneity and Conditional Mass
Polarization
It is well-established that the conflict space of American party elites is arrayed
along a dominant left-right ideological dimension (McCarty, Poole, and Rosenthal
Ideological Heterogeneity and the Rise of Donald Trump
387
2006). Of course, the meaning of this ideological dimension has changed, as it
has incorporated racial, social and religious issues into what was once primarily
an economic dimension of conflict. Social and religious issues like abortion and
prayer in public schools have not replaced economic issues.
Rather these newer cultural conflicts have joined economic issues in both
broadening and re- defining the liberal-conservative dimension of American politics (Highton 2012). Geoffrey Layman and Thomas Carsey have referred to this
transformation as “conflict extension” and its existence has been documented
among strong partisans in the electorate, party activists and political elites
(Layman and Carsey 2002a,b; Carsey and Layman 2006; Layman et al. 2010).
But unlike political elites, mass level preferences on policy issues have not
collapsed onto a single liberal-conservative dimension. Instead, among the
general public preferences on most salient domestic policy issues vary along not
one but two related but separate dimensions, one defined mainly by economic
and social welfare issues and the second by social, cultural and religious issues
(Shafer and Claggett 1995; and Claggett and Shafer 2010; Carmines, Ensley, and
Wagner 2012a). The issues that make up the first dimension are distributional in
character; traditionally they focused on the size and scope of government, especially the role of the national governments in intervening in the economy and
providing for the general welfare. More recently, these issues have centered on
the extent to which government has a responsibility for reducing social and economic inequalities. Economic issues have been at the heart of liberal-conservative conflict in America since the founding but they took on renewed importance
during the New Deal era, as the country struggled with what responsibility the
national government had in alleviating the effects of the Great Depression. Even
more recently, racial issues, which historically had formed a separate, second
dimension of political conflict, have fused onto this dimension since many contemporary race-related issues are distributional in character (see Kellstedt 2003;
Noel 2014).
The cultural, or social, dimension of conflict – issues that focus on the role of
government in enforcing and regulating appropriate moral and social behavior –
has also played an important role throughout American political history although
only in the contemporary era has it been a defining issue cleavage separating
the major parties. More frequently, cultural conflicts have played out within each
party’s coalition, setting party factions against one another.
At various times, cultural issues have also been a key motivating factor in the
launching of third party efforts. Historically, cultural conflicts primarily involved
intra-party rather than inter-party conflicts.
What is distinctive about contemporary American politics, then, is not the
existence or even the salience of cultural conflicts – issues such as women’s
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suffrage, public education and pornography have been contentious topics in
American politics at various times – but that in the current era cultural issues
have divided rather than cut across party lines. The 1980 presidential election
marked a pivotal point in the partisan evolution of cultural conflicts; in the campaign the Republican Party made a major effort to attract the support of cultural
and religious conservatives who had been largely apolitical until this point but
have since become a core element in the GOP’s electoral coalition. Simultaneously, starting with the 1972 presidential campaign of George McGovern, cultural
liberals and religious secularists have moved steadily into the Democratic Party
and have become a significant part of the party’s coalition.
Hetherington and Weiler (2009) note that in recent years the rise of these
social and cultural issues, which are broadly related to citizens’ support for
authoritarianism, has created a deeper, more emotional feeling of polarization
among supporters of the two major parties (see also Abramowitz 2013).
Since these two basic dimensions of political conflict have not collapsed onto
a single liberal-conservative dimension at the level of the electorate as a whole
this must mean that the citizenry is composed not just of liberals and conservatives who have consistently liberal or conservative positions on both economic
and social issues – which may be termed the “main diagonal” of ideological
conflict since it reflects the structure of political preferences found among party
elites and the political class more generally.
Crucially, from our standpoint, the existence of the second dimension means
that there are a significant number of citizens whose issue preferences place them
in the “off diagonal” policy space, as their combination of policy preferences do
not reflect the elite template. Citizens with heterodox policy preferences come in
two varieties: those who have liberal positions on economic issues and conservative preferences on social issues or vice versa. We refer to the former as populists
and the latter as libertarians (Carmines, Ensley, and Wagner 2012a,b). Populists
and libertarians thus have a set of policy preferences that are opposite of one
another; they are just as polarized from each other as liberals are from conservatives. But they are alike in one fundamental regard, a regard that sets them apart
from liberals and conservatives: neither libertarians nor populists have policy
preferences that align with the ideological divide represented by the two major
parties. Quite the contrary, libertarians are closer to the Republican position on
the economic issue dimension but closer to the Democratic position on social
issues while populists are nearer the Democratic Party on economic issues but
the Republican Party on social issues. Unlike liberals and conservatives, in other
words, libertarians and populists are cross- pressured, having no clear ideological incentive to adopt the polarized beliefs and behaviors of either Republican or
Democratic Party elites (see Klar 2014).
Ideological Heterogeneity and the Rise of Donald Trump
389
Ideological Heterogeneity and Support for
Nationalist Public Policies
While most of the Republican candidates for president spent the 2016 primaries
running traditional campaigns that had candidates working to raise money, take
conservative positions on a variety of issues, advertise and seek elite endorsements, Donald Trump pursued an entirely different strategy. Rather than avoiding controversy, Trump courted it. Instead of working to earn the endorsements of
members of the Republican establishment, Trump claimed that party elites were
part of the problem. Azari (2016) has argued that Trump used the news media to
disseminate his message in a way that helped him to perform vital coordination
functions that would normally be conducted by a political party. As Wells et al.,
(2016) put it, Trump’s “mastery of conventional and digital media – hybrid campaigning – helped drive his coverage to the nomination” (p. 675).
One strategy Trump employed during these media appearances and tweets
was to espouse issue preferences consistent with the support of nationalist policies – policies Trump argued were central to the ability to “make American great
again.” Rahn and Oliver (2016) wrote in the Washington Post’s political science
blog The Monkey Cage that Trump supporters had a strong national identity and
supported authoritarian governing styles.
Support for nationalist policies is unevenly distributed across liberals, conservatives, libertarians, populists and moderates. To develop an understanding
of the voters who might be most likely to favorably respond to Trump’s message,
we examined data from the 2008 American National Election Study (ANES) on
respondents’ opinions about four issues: (1) how likely is it that immigration takes
away jobs; (2) should the government discourage companies from outsourcing;
(3) favor the torture of terrorist suspects; and (4) do Blacks have too much influence on politics. To identify which ideological group a respondent belongs to, we
followed the procedures outlined in Carmines, Ensley, and Wagner (2012b).1 The
data in Table 1 are the percentage of White citizens among each ideological type
that support/agree with the position. We focus on White respondents given the
1 A summary of the procedure is as follows. We identified survey questions that could be classified as economic/social-welfare issues and social/cultural issues in the 2008 ANES and performed multiple imputation to account for any missing data on the issue survey questions. We
then performed a two-factor confirmatory factor analysis using the imputed data sets with the
issue questions as indicators for the two dimensions. Based on the factor scores from the confirmatory factor analyses on the imputed data sets, citizens were classified as one of the five
ideological types based on their location in the two-dimensional policy space. In all of these
analyses, we utilized the sample survey weights.
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Table 1: White Americans’ Support for Nationalist Policies by Ideological Type, 2008.
Populists Libertarians Moderates Liberals Conservatives
Immigration takes jobs
Discourage outsourcing
Favor torture
Blacks have too much influence
Ratio of D to R identifiers
59%
87%
38%
16%
55/27
36%
65%
28%
9%
43/42
50%
71%
21%
9%
49/38
35%
75%
16%
3%
73/14
53%
66%
28%
19%
16/75
Data are from 2008 ANES. Cell entries are sample-weighted percentages.
Trump’s appeal is almost exclusively to those citizens. Table 1 also includes the
ratio of Democratic to Republican Party identifiers.2
Table 1 illustrates that White populists are the most supportive of the issues
that we would associate with Trump’s candidacy; White populists are the most
likely to think that immigration takes jobs, to agree that government should discourage outsourcing, and to favor the use of torture. And while Trump’s positions on these issues were attractive to populists, these citizens are the second
most pro-Democratic Party group (55 percent identify as Democratic but only 27
percent identify as Republicans). Further, White populists are the second most
likely ideological group to think that Blacks have too much influence on politics and thus may not be as bothered by Trump’s racially-oriented campaign (see
Schaffner 2016).
We conducted similar analyses using data from the primary election season
in 2016. To examine support for nationalist issues, we created a simple summated-rating scale using several issues questions in the 2016 ANES Pilot Study.
The “nationalist” issues we examined are (higher values are assumed to be more
nationalist):
1. Support for allowing Syrian refugees (opposition is higher)
2. Whether we should increase federal spending to fight crime (increase is
higher)
3. Concerns about a local terrorist attack (greater concern is higher)
4. Support using troops to fight ISIS in Syria and Iraq (support is higher)
5. Support for death penalty in murderer convictions (support is higher)
6. Whether legal immigration is generally good or bad for the US (bad is higher)
7. Support for an increase in legal immigration (opposition is higher)
Each issue is weighted equally in creating the scale, which is constructed to range
between 0 and 1 with higher scores indicating greater support for nationalist
2 Respondents that indicated they “leaned” towards one party are classified as partisans.
391
Support for Nationalist policies
Ideological Heterogeneity and the Rise of Donald Trump
Figure 1: Support for Nationalist Policies in the 2016 Presidential Primaries.
Source: 2016 American National Election Study Pilot Study.
policies. It is also worth noting that we used a slightly different approach to assign
ideological categories to survey respondents given the paltry number of social/
cultural issue questions (only equal pay for women, birth control, and support
for businesses denying service to same sex couples were available) in the pilot
study.3 We also used feeling-thermometer questions about feminists, transgendered individuals, and homosexuals as indicators for the social issues scale.
Figure 1 shows that the highest level of support for nationalist policies in
2016 is among populists and conservatives. Liberals exhibit the lowest support
for nationalist policies.
Donald Trump’s Appeal to Populists in the 2016
Republican Primary
On the one hand, these results suggest that populists were a group custom-made
to respond to Trump’s candidacy. Unanchored in either major political party
3 To locate respondents in the two-dimensional issue space, we handled missing data using
confirmatory factor analysis estimated via maximum likelihood with missing data in Stata 12, as
opposed to performing multiple imputation before the confirmatory factor analysis. This is the
approach used by Layman and Carsey (2002a,b). The choice of how to handle missing data does
not affect the results we present here.
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Table 2: Size, Turnout, Loyalty, and Contribution to Republican Presidential Coalition, 2012.
Year
Liberal
2012
Conservative
2012
Moderate
2012
Libertarian
2012
Populist
2012
Turnout
Loyalty
Size
Contribution
80%
5%
19%
2%
83%
86%
27%
54%
65%
32%
21%
12%
79%
56%
22%
28%
61%
27%
11%
5%
(Carmines, Ensley, and Wagner 2012b), they are prime candidates for “flanking”
strategies aimed at picking up “off- diagonal” voters (Miller and Schofield 2003).
On the other hand, our previous work has shown that for the past half century,
populists have been a very small part of the Republican Party’s coalition.
Using Axelrod’s (1972) model, which calculates the contribution that different groups make to a political party’s electoral coalition, we estimated the size
of each ideological group, as well as their propensity to turn out, their loyalty to
a party, and their contribution to a party’s coalition. The group’s contribution is
defined as the proportion of a party’s total votes provided by a given group and is
based on the three components of the group: its size, turnout, and loyalty. Simply,
a group’s contribution to the party’s coalition is greater if the group is large, its
turnout is high, and its vote is lopsided in favor of one party. While Axelrod’s
model initially was used to calculate the contribution of various demographic
groups to the Democratic and Republican electoral coalitions, it can readily be
applied to ideological groups. Table 2 shows that in 2012, populists were the
smallest ideological group in the electorate and contributed a mere 5 percent to
Mitt Romney’s coalition. Only liberals contributed less. Populists turned out less
than any other group and were the second least loyal (liberals were the least loyal
to the GOP) to the Republican Party. Table 3 shows that for Democrats, populists
were the second most loyal but only the fourth largest contribution to Barack
Obama’s coalition.
Taken together, these results suggest that populists are a relatively small
group that hold greater fealty for the Democratic Party than the Republican Party
(see Carmines, Ensley, and Wagner (2014) for similar evidence from 1972 to 1992).
It should not be surprising, then, that other GOP candidates did not make a strategic play for populists in the 2016 primaries.
Ideological Heterogeneity and the Rise of Donald Trump
393
Table 3: Size, Turnout, Loyalty, and Contribution to Democratic Presidential Coalition, 2012.
Year
Liberal
2012
Conservative
2012
Moderate
2012
Libertarian
2012
Populist
2012
Turnout
Loyalty
Size
Contribution
80%
95%
19%
37%
83%
14%
27%
8%
65%
68%
21%
23%
79%
44%
22%
20%
61%
73%
11%
12%
However, in a field of more than a dozen candidates, each vying for the
support of what is largely the same slice of the electorate, a play for populists
begins to make more strategic sense. We also estimated the support among
Republican identifiers, by ideological group, for each Republican candidate
in the 2016 primaries. Perhaps not surprisingly, Republican populists were the
group most likely to express support for Donald Trump in the ANES pilot. Moderates were the next highest Trump supporters. Notably, 30 percent of conservatives
preferred Trump in the primary election season, even in an abnormally large field
of conservative candidates.
Though our focus here has been primarily on populists, it is important to
keep in mind that Trump did well amongst conservatives and that conservatives
are by far the largest and most loyal group of Republican Party voters.
That said, we still wish to note that even after controlling for racial resentment and partisanship, populists were significantly more likely to support Donald
Trump in the 2016 primaries. Figure 2 shows that probability that a populist in
the Republican primary supported Trump was 42 percent, which is 10 percentage
points higher than the next closest ideological group. Full regression results are
available from the authors.
Discussion
What are we as political scientists to make of the mass appeal and electoral
success of Donald Trump? To be sure, he did not win the popular vote and takes
office with historically low approval ratings. But at the beginning of the primary
Edward G. Carmines et al.
Likeihodd of Trump support
394
Figure 2: Republican Support for Donald Trump in the 2016 Primaries.
Source: 2016 American National Election Study Pilot Study.
season few analysts gave Trump much of a chance to win the GOP nomination
contest much less gain an Electoral College victory.
Trump’s support among Republican primary voters and probably in the
broader electorate, we suggest, only makes sense once we recognize that the
political choices offered by a conservative Republican Party and a liberal Democratic Party do not reflect the full extent of the ideological heterogeneity found in
the American public. While there are millions of voters holding mainly conservative or liberal issue orientations there is also a sizable segment of the electorate,
including self-identified Democrats, Republicans and Independents, whose issue
preferences are neither consistently liberal nor conservative. Instead, their heterodox combination of economic and social-welfare issue preferences and their
social and cultural preferences reflects a libertarian or populist ideological perspective. In other words, the marketplace of ideas found in the American public is
much more varied and heterogeneous than that offered by the two major parties
(Carmines, Ensley, and Wagner 2011, 2012a,b, 2014).
By strategic design or dumb luck, the Trump candidacy was able to activate a
segment of the electorate that has historically not been part of the GOP electoral
coalition. Compared to voters with liberal, conservative, moderate or libertarian
views, those citizens holding populist opinions are not only the smallest slice
of the electorate and the least likely to turnout, they have been notably disinclined to vote for Republican presidential candidates. But this may have changed
in 2016. At least during the primary season Trump with his nationalist policy
appeals was able to garner significant support among populist voters.
Ideological Heterogeneity and the Rise of Donald Trump
395
We do not yet have evidence of voting behavior in the 2016 general election.
We do not know if populists increased their turnout, their loyalty to the Republican Party, or their contribution to the Republican coalition. The evidence from the
2016 primary elections suggest that Trump’s message may have appealed to populists in a way that could have fundamentally altered the electorate in states where
White populists reside – states like Wisconsin, Pennsylvania and Michigan. We
look forward to finding out.
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Edward G. Carmines is Distinguished Professor, Warner O. Chapman Professor of Political
Science and Rudy Professor at Indiana University where he is also the Research Director at
the Center on Representative Government and Director of the Center on American Politics.
He has published more than 75 articles and chapters in edited books as well as a half dozen
books including Issue Evolution (with James A. Stimson) and Reaching Beyond Race (with
Paul M. Sniderman) both of which won the American Political Science Association’s Gladys M.
Kammerer Award for Best Book in the Field of US National Policy. He is a Fellow of the American
Academy of Arts and Sciences and the American Association for the Advancement of Science.
Michael J. Ensley is an Associate Professor of political science at Kent State University. His
research examines how candidates for and members of the US Congress respond to the competing demands of citizens, activists, interest groups and political parties. His work has appeared
in outlets such as American Journal of Political Science, Political Analysis, Public Choice, American Politics Research, and American Behavioral Scientist.
Ideological Heterogeneity and the Rise of Donald Trump
397
Michael W. Wagner is an Associate Professor and Louis A. Maier Faculty Development Fellow in
the School of Journalism and Mass Communication at the University of Wisconsin-Madison. He
is affiliated with the Department of Political Science and the La Follette School of Public Affairs.
He has published work related to questions of political behavior and political communication in
journals such as Journal of Communication, Annual Review of Political Science, Journalism and
Communication Monographs, American Politics Research, Political Research Quarterly and is
editor of the “Forum” in Political Communication, not to be confused with this fine journal.