Something Lis pointed out to me the other day:

[xiphias]

At the moment, the only Protestant on the ticket for either major party is Obama. Biden and Ryan are Catholic; Romney's a Mormon. Of the nine Supreme Court justices, five are Catholic, two are Jewish, and two are Protestant (one Episcopalian, one just identifies as "Protestant"). Harry Reid is Mormon; Nancy Pelosi is Catholic. Eric Cantor is Jewish, and Mitch McConnell, as a Southern Baptist, is the only Protestant in the list.

Things have been changing.