Emory political scientists Alan Abramowitz and Steven Webster have a new paper, not yet available online, exploring the nature of the new polarization. The paper is filled with interesting findings, but the major one is an attempt to resolve a paradox. Measured by self-identification, partisanship is actually declining — growing numbers of Americans describe themselves as “independent” rather than loyal to one of the parties. But measured by actual voting behavior, the opposite is happening: Straight ticket voting continues to grow. This matches what operatives like Dan Pfeiffer have seen, and what Karl Rove saw a decade before — the swing voter had nearly vanished.
One common explanation is that it has become increasingly vogue, especially among college-educated voters, to describe yourself as independent, which implies that you form educated judgments about politics rather than blindly following the dictates of a party. Abramowitz and Webster add to this by introducing a phenomenon they call negative partisanship. That is to say, voters form strong loyalties based more on loathing for the opposing party than on the old kind of tribal loyalty (“My daddy was a Democrat, his daddy was a Democrat …”) that used to prevail. The party system has split along racial, cultural, and religious lines, creating a kind of tribal system where each party’s supports regard the other side with incomprehension and loathing.