What is urban politics really about? Despite decades of research, there is still considerable disagreement about the relative roles of race, class, ideology, partisanship, and other factors in shaping the urban vote. In this article, we assemble a wide range of data on a diverse set of urban elections and offer a more explicit empirical test of what shapes urban politics. Our results suggest that local elections are partly an ideological battle, partly a partisan contest, and at least marginally linked to class, religion, and morality. Race, however, is the dominant factor in the local electoral arena. Local elections are in no small part a competition between blacks, whites, Latinos, and Asian-Americans over the leadership of their cities. We also assess how and why these divides vary across cities and electoral contexts finding that a theory of realistic group conflict best predicts patterns in the vote.