For decades, political scientists have blasted away at electoral models based primarily on the idea of rational choice. In the most recent and sophisticated entry in the field, Democracy for Realists, Christopher Achen and Larry Bartels argue that even well-informed and politically engaged voters mostly choose candidates based on their social identities and partisan loyalties. Judging from the 2016 polls, that theory looks pretty good.--E.J. Dionne, Washington Post sakriti opis