Immigration is profoundly changing the racial demographics of America. In this article, we seek to understand if and how immigration and increasing racial diversity are shaping the partisan politics of individual white Americans. We show that whites’ views on immigration and Latinos are strongly related to their core political identities and vote choices. Using a range of different surveys, we find that, all else equal, whites with more anti-immigrant views or more negative views of Latinos are less apt to identify as Democrats and less likely to favor Democratic candidates. This rightward shift harkens back to an earlier period of white defection from the Democratic Party and highlights the enduring but shifting impact of race on American politics.