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What’s causing this rise in polarization? How does today’s polarization compare to other periods in U.S. history? How worried should we be about it? And what can we do to combat it?

97.9 The Hill’s Aaron Keck recently spoke with UNC political scientist Marc Hetherington, whose research focuses on partisanship and polarization. With Jonathan Weiler, Hetherington is the co-author of Authoritarianism and Polarization in American Politics (2009) and Prius or Pickup? How the Answers to Four Simple Questions Explain America’s Great Divide (2018).