According to Gallup, Republican and Republican-leaners of voting age who identify as Mormon are disproportionately likely to support Mitt Romney, while Ron Paul garners more support among atheist Republicans than he does among Republicans of all religious denominations. Romney collects 71 percent of the Mormon Republican vote, exceeding the 23 percent he scores among all Republicans, and Paul garners 19 percent of the atheist vote, more than the 10 percent of all Republicans who support him. Gallup surmises that Paul's support among atheist Republicans at least partly reflects "the youthful skew in Paul's support and the tendency for young Americans to have no formal religious identity."
Similar to Catholic Republicans, Protestant Republicans "reflect the overall sample average in their candidate support." The three major Protestant candidates are Ron Paul, Rick Perry, and Michele Bachmann (who has just suspended her campaign). Paul only gets 10 percent of the Protestant vote, which matches his score among all Republicans; Perry gets eight percent of the Protestant vote, only one more percentage point than his support among all Republicans; and Bachmann scores seven percent of the Protestant vote, just surpassing the six percent of all Republicans who support her.