In fact, partyism, as some call it, now beats race as the source of divisive prejudice. When Americans moved in the past, they left in search of better jobs, cheaper housing, or milder weather. But according to The Big Sort: Why the Clustering of Like-Minded Americans Is Tearing Us Apart by Bill Bishop and Robert G. Cushing, when people move today, it is more often to live near others who share their views.
