Romney: Santorum hasn't been vetted enough yet

On Tuesday, the Drudge Report ran a story about Santorum’s statement from 2008 that Satan was threatening the United States, while the liberal group Right Wing Watch produced a 2008 clip of Santorum saying liberals could not be Christians.

Mitt Romney has already seized on the stories by questioning whether Santorum has been vetted sufficiently in the race.

“Sen. Santorum hasn’t been as carefully viewed by the American public as have the others,” Romney said at a campaign stop on Tuesday. “We had Donald Trump for a while and we had Herman Cain and we had Rick Perry, Newt Gingrich — they’ve all been vetted very carefully. Rick Santorum is now just being seen for the first time in many moments and his background and mine are very different.”