Supporters of Rick Santorum and Newt Gingrich are the most anti-gay, a new poll by Bill Maher has found.

The poll, conducted by Public Policy Polling and commissioned by HBO's Real Time with Bill Maher, found that Republican voters are significantly more uncomfortable with an openly atheist candidate, than an openly gay one (69 percent of Republicans said they were less likely to vote for an atheist candidate, while 53 percent said they were less likely to vote for a gay candidate.)

Among voters supporting a Republican candidate, Santorum (64%) and Gingrich (50%) supporters were the least likely to vote for a gay candidate. Ron Paul supporters were 45 percent less likely, while 42 percent of Mitt Romney supporters said they were less likely to vote for a gay candidate.

Santorum's first place finish is not much of a surprise given his long history of anti-gay rhetoric. The former Pennsylvania senator in 2003 compared gay sex to “man on dog.” More recently, he said he objects to gay marriage because it would “destabilize the family.” And he has blamed the wrecked economy on marriage equality.