Two of the largest religious groups in the electorate followed the same basic voting patterns in the 2010 elections for the U.S. House of Representatives as they have in prior elections: white Protestants voted overwhelmingly Republican and religiously unaffiliated voters cast their ballots overwhelmingly for Democrats. But Catholic voters, who had favored Democratic over Republican candidates by double-digit margins in the last two congressional elections, swung to the GOP in 2010. Go to the full analysis »

See also:

• An exit poll analysis of the general electorate from the Pew Research Center for the People & the Press
• An exit poll analysis of the Latino vote from the Pew Hispanic Center, also a project of the Pew Research Center

Writing about Muslim communities in East Asia, journalist Robert Kaplan cites a 2009 Pew Forum demographic study that found that roughly 60% of the world's Muslim population lives in Asia.