Introduction
Party identification: the historical and ontological origins of a concept
Identity, ideology, information, and the dimensionality of nonpartisanship
Leaving the mule behind: independents and African American partisanship
What does it mean to be a partisan?
The sequential logic of Latino and Asian American partisanship
Beyond the middle: ambivalence, extremism, and white nonpartisans
The electoral implications of nonpartisanship
Conclusion.