In this authoritative study, three political scientists demonstrate that identification with political parties powerfully determines how citizens look at politics and cast their ballots." Partisan Hearts and Minds is a profound breakthrough in our understanding of partisan loyalties and makes a major contribution to the study of political attitudes and voting behavior."--Paul Abramson, Michigan State University" This book will be influential the moment it appears. It will be the starting point for all further treatments of the topic."--Richard Johnston, University of British Columbia" The grounding of partisanship in social identities is the most important theoretical contribution to the study of partisanship in the last two decades."--Morris P. Fiorina, Stanford University