Like their congregants, religious leaders have sharply divided themselves along political lines. Leaders and congregants of Unitarian and African Methodist Episcopal churches are overwhelmingly Democratic, as are those of Reform and Conservative Jewish synagogues. Those of several Evangelical and Baptist churches are overwhelmingly Republican. If religious denominations were states, almost all of them would be considered “Safely Democratic” or “Safely Republican,” with relatively few swing states.

Yet pastors are even more politically divided than the congregants in their denomination: Leaders of more liberal denominations tend to be even more likely to be registered as Democrats, and those of more conservative denominations even more likely to be registered as Republicans.

“It’s a reflection of the ongoing sorting we have in American life,” said Mark Chaves, a professor of sociology, religion and divinity at Duke University. “Why would we think that religion is immune to that?”