The Partisan Sorting of `America': How Nationalist Cleavages Shaped the 2016 U.S. Presidential Election∗ Bart Bonikowski New York University Yuval Feinstein University of Haifa Sean Bock Harvard University ∗Funding for this research was provided by the US-Israel Binational Science Foundation (Bonikowski and Feinstein), the Stanford Center for Advanced Study in the Behavioral Sciences (Bonikowski), the Harvard University Dean's Fund for Innovation (Bonikowski), and the Marie Curie Career Integration Grant (Feinstein). We are grateful for helpful feedback from Kiyoteru Tsutsui, Marco Garrido, Steve Morgan, Paul Pierson, Jeff Manza, Sarah Roberts, audiences at Stanford, UC Berkeley, UC Riverside, UC Santa Barbara, Stony Brook, NYU, MIT, APSA, and ASA, and participants in the 2019 CIFAR Successful Societies Workshop. Direct correspondence to Bart Bonikowski, Puck Building, Room 4143, 295 Lafayette St., New York, NY 10012;
[email protected]. 1 ABSTRACT: Political scientists have acknowledged the importance of nation- alism as a constitutive element of radical-right politics, but have typically em- pirically reduced the phenomenon to its downstream attitudinal correlates. Soci- ologists, on the other hand, have extensively studied nationalism, but have only sporadically engaged in debates about institutional politics. In this study, we bring these literatures together by considering how nationalist beliefs shaped re- spondents' voting preferences in the 2016 U.S. presidential election and how the election outcome built on long-term changes in the distribution of nationalism in the U.S. population. The results suggest that competing understandings of American nationhood were effectively mobilized by candidates from the two par- ties, both in the 2016 primaries and the general election.