America is polarized, first and foremost, by identity. Everyone engaged in American politics is engaged, at some level, in identity politics. Over the past 50 years, our partisan identities have merged with our racial, religious, geographic, ideological, and cultural identities, attaining a weight that is breaking much in our politics and tearing at the bonds that hold this country together.

In Why We’re Polarized, Klein—the editor-at-large and cofounder of Vox—reveals the structural and psychological forces behind America’s descent into division and dysfunction and what that polarization has done to the way we see the world and one another.

Neither a polemic nor a lament, Klein offers a clear framework for understanding everything from Trump’s rise to the Democratic Party’s leftward shift to the politicization of everyday culture.

Klein is the host of the podcast “The Ezra Klein Show,” co-host of “The Weeds” podcast, and an executive producer on Vox’s Netflix show, “Explained.” Previously, he was a columnist and editor at The Washington Post, a policy analyst at MSNBC, and a contributor to Bloomberg. In conversation with Jamelle Bouie, an Opinion columnist for the New York Times. Book signing to follow.