Seth Masket is a professor of political science at the University of Denver. He has written five books on political parties, including Learning from Loss: The Democrats 2016-2020 (2020). He was the Senior Visiting Scholar at the Center for the Study of Democratic Institutions at Vanderbilt University (2024-2025), and the Kluge Chair in American Law and Governance at the Library of Congress (2018). He writes regularly at his 'Tusk' newsletter.