I am a political scientist, college professor, consultant, and author of More Parties or No Parties: The Politics of Electoral Reform in America (2022). This book gives an account of how electoral rules change and tests its usefulness against new data on the single transferable vote in U.S. cities, 1913-60s.

My research areas include the U.S. party coalitions and state/local electoral systems. This work is published in American Politics Research; Electoral Studies; the Journal of Elections, Public Opinion and Parties; Politics, Groups, and Identities; Politics & Policy; Politics and Governance; Public Opinion Quarterly; Representation; Social Science Quarterly; and other outlets. My current projects are on party fragmentation, party identification, minority representation, and political discontent. I also work with think tanks on some of these issues. This work is useful for finding ways to make liberal democracy work better.

My graduate training at Georgetown University was in American and comparative politics and focused on political institutions. Since then, most of teaching has been in American politics: state/local government, parties, public opinion, and how to think about electoral systems in the U.S. context. I also teach methods.

Last updated 2024-11-27.