‘Why We’re Polarized’ shows how media, emotion, politicians and more are dividing Americans

Few books are as well-matched to the moment of their publication as Ezra Klein’s “Why We’re Polarized.” President Trump has just become the third president ever to be impeached — and the first one where the votes have fallen almost perfectly along party lines. Klein’s careful book explains how different groups of Americans can see politics through such different lenses, examining how various psychological mechanisms allow committed partisans to rationalize almost anything their party does. CONT.

Dan Hopkins (Penn), Monkey Cage