Listen now | On this recent WhoWhatWhy podcast, Princeton historian Julian Zelizer offers a provocative argument from his new book In Defense of Partisanship. At a time when nearly a third of Americans view both major parties with disgust and many blame partisan loyalty for our democratic decay, Zelizer says that strong, disciplined political parties — not feel-good Biden-style bipartisanship — have historically been crucial to America’s greatest achievements.