Political violence is rising in the United States, with Republicans and Democrats divided along racial and ethnic lines that spurred massive bloodshed and democratic collapse earlier in the nation’s history. The January 6, 2021 insurrection and the partisan responses that ensued are a vivid illustration of how deep these currents run. How did American politics become so divided that we cannot agree on how to categorize an attack on our own Capitol?

In the new book Radical American Partisanship, Lilliana Mason and Nathan Kalmoe bring together four years of studying radicalism among ordinary American partisans. They draw on new evidence—as well as insights from history, psychology, and political science—to put our present partisan fractiousness in context and to explain broad patterns of political and social change. 

Mason joins us this week to discuss the findings and the rocky path toward making the United States a fully-realized multiracial democracy She is an associate professor of political science at the SNF Agora Institute at Johns Hopkins University and author of Uncivil Agreement: How Politics Became Our Identity.

Additional Information

Radical  American Partisanship: Mapping Violent Hostility, Its Causes, and the Consequences for Democracy

Lilliana Mason on Twitter

SNF Agora Institute at Johns Hopkins University

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