On the day before the Iowa Caucus, Gov. Rick Perry, Rick Santorum, and Newt Gingrich are battling it out for third place. And with a new Rasmussen poll showing 41 percent of likely Caucus go-ers could still change their minds, it’s still anyone’s game.

According to a Des Moines Register poll released this weekend, the three candidates are separated by about four percentage points. Judging from voters we spoke with in Iowa, however, evangelicals are divided between Perry and Santorum.

One voter told YNN that she planned to vote for Perry because "anyone who can quote the bible" has her support. Another said she approved of both Perry and Santorum’s family values and "you figure you can trust they’ll treat their constituents well if they treat their family’s well."

Santorum’s surge in the poll this week has opened him up to fresh targets from his rivals, including Gov. Perry. In a new radio ad, Perry took aim at what he called Santrorum’s ‘prolific port barrel spending’ and his support of the ‘bridge to nowhere; a vote Santorum has publicly defended.

Iowans say they’re listening closely to candidate speeches and keeping an eye on ads, but they’re not taking their words at face value. Most voters we spoke with saying they’re fact checking the candidates claims on their own.