John Sides is the William R. Kenan, Jr. Professor of Political Science at Vanderbilt University. Twitter @johnmsides Chris Tausanovitch is associate professor of political science at the University of California, Los Angeles. Twitter @ctausanovitch Lynn Vavreck is the Marvin Hoffenberg Professor of American Politics and Public Policy at the University of California, Los Angeles. Twitter @vavreck Sides and Vavreck are the coauthors of The Gamble: Choice and Chance in the 2012 Presidential Election and, with Michael Tesler, of Identity Crisis: The 2016 Presidential Campaign and the Battle for the Meaning of America (both Princeton).