All of them. Every last one. From AP via NY TIMES:

Presidential Candidates' Religions

The Associated Press asked the 2008 presidential candidates what religion they practice, whether they are a member of a particular church, and how often they attend services.

Like the majority of Americans, all the candidates are Christians. Seven are Roman Catholic, four are Baptist, two are Methodist, one is Episcopalian, one is Presbyterian, one is Mormon, and one describes himself simply as Christian.

Their answers:

DEMOCRATS:

Delaware Sen. Joseph Biden: Roman Catholic New York Sen. Hillary Rodham Clinton: Methodist

Connecticut Sen. Christopher Dodd: Catholic

Former North Carolina Sen. John Edwards: Methodist

Ohio Rep. Dennis Kucinich: Catholic

Illinois Sen. Barack Obama: Christian

New Mexico Gov. Bill Richardson: Catholic

^------

REPUBLICANS:

Kansas Sen. Sam Brownback: Catholic

Former New York Mayor Rudy Giuliani: Catholic

California Rep. Duncan Hunter: Baptist

Former Arkansas Gov. Mike Huckabee: Southern Baptist

Arizona Sen. John McCain: Episcopalian

Texas Rep. Ron Paul: Baptist

Former Massachusetts Gov. Mitt Romney: Mormon

Colorado Rep. Tom Tancredo: Presbyterian

Former Tennessee Sen. Fred Thompson: Southern Baptist

Former Wisconsin Gov. Tommy Thompson: Catholic

+++

Not an Athiest in the bunch. I'd settle for a Taoist.

Good god you're so naiive. Surely a few are athiest but hide it as to not rock the boat.

They're politicians, they all worship money and power. The rest is just a cover.

wolves in sheeps clothing. except romney. mormons are just fucking weird.