America the polarized -- Mass opinion in context : how elite polarization has shaped political behavior -- Elite polarization and Americans' perceptions of the political parties -- Measuring policy orientations and political sophistication -- A test of the recursive relationship between policy orientations and partisanship -- The relationships between policy orientations, partisanship, and vote choice -- A test of how elite polarization shapes mass political behavior -- How political sophistication shapes responses to elite polarization -- The implications of our polarized politics

"What motivates citizens to support one party over the other? Do they carefully weigh all the relevant issues and assess which party or candidate best matches their own positions? Or do people look at politics as something more akin to a team sport-the specifics do not matter if you know what side your team is on? Understanding how and why Americans vote the way they do is central to understanding the political process. What I claim in Political Choice in a Polarized America is that individuals have core beliefs about what the government should or should not do and these attitudes explain a great deal about what party a person identifies with and votes for. Moreover, I demonstrate these attitudes' explanatory power has increased in recent decades. My thesis rests on the idea that voters generally try to support the party or candidate that best matches their orientations. However, voters' ability to successfully do so varies as a function of the signals sent by elites. Voters have an easier time connecting their own orientations with the party offerings when the parties are polarized. As a result, voters' policy attitudes explain a lot more about their partisan preferences than they did in previous eras. When the parties are polarized, people notice, even if they do not place close attention to politics. The result is an electorate divided by partisanship, policy, and ideology"--