Sam RosenfeldSam Rosenfeld is an associate professor of political science at Colgate University, specializing in party politics and American political development. His research interests include the history of political parties, the intersection of social movemens and formal politics, and the politics of social and economic policymaking. His first book, The Polarizers: Postwar Architects of Our Partisan Era (University of Chicago Press, 2018), offers an intellectual and institutional history of party polarization in the postwar United States. His second book, coauthored with Daniel Schlozman of Johns Hopkins University, is titled The Hollow Parties: The Many Pasts and Disordered Present of American Party Politics. Forthcoming in May 2024 from Princeton University Press, The Hollow Parties tracks party development in the United States since the Founding to account for our contemporary political discontents. His writing has also appeared in the American Prospect, Boston Review, Democracy, n+1, the New Republic, the New York Times, Politico, the Washington Post, and Vox. Read More Read Less