Americans are shifting the rest of their identity to match their politics

Egan found that these shifts were correlated with political ideology and partisanship:

Liberal Democrats were much more likely than conservative Republicans to start identifying as Latino or saying that their ancestry was African, Asian or Hispanic.

Conservative Republicans were much more likely than liberal Democrats to become born-again Christians and to stop identifying as non-religious; liberal Democrats were much more likely than conservative Republicans to leave religion and stop describing themselves as born-again.

Conservative Republicans were more likely than liberal Democrats to stop describing themselves as lesbian, gay or bisexual; liberal-leaning Democrats were more likely to start identifying as lesbian, gay or bisexual.