Matt Motyl, Shigehiro Oishi, Sophie Trawalter, and Brian A. Nosek (Virginia) and Ravi Iyer (USC): How Ideological Migration Geographically Segregates Groups. John Sides on how most Americans live in Purple America, not Red or Blue America: We're far less politically divided by geography than it may seem; and on how long commutes are making Americans more politically apathetic: New research suggests that those hours spent in traffic may actually hurt our democracy. Stop whining, centrists — bipartisanship is a myth that’s never existed: While Beltway elite pine for the "good old days" and condemn filibuster reform, they're wrong on the history. Bipartisan group finds bridges hard to build: No Labels brings together lawmakers of diverse ideological stripes to find solutions, but its effectiveness is questioned. Seth Masket on the radical political center that somehow never rises: Is it even possible for our country to support a moderate political party? Carl Desportes Bowman on the imagined American center. Mitchell Plitnick on the false center: Well-intentioned people like Robert Reich must be made to understand that you cannot simultaneously hope to change the course of so massive a machine as the Democratic Party and also do so in a nice, friendly manner. Neera Tanden on how Washington “centrists” don't want Obama to target inequality — they're pushing bad politics and bad economics. Michael Smerconish and Pete Dominick make Cedric Muhammad uncomfortable: What centrist-independents reveal about liberals and conservatives.