Newt Gingrich made clear on Wednesday that he isn’t calling it quits any time soon—because he’s not confident in the alternative candidates. If he felt Rick Santorum’s nomination and subsequent election were a sure thing, Gingrich says, he might back down. “If I thought he was a slam dunk to beat Romney and to beat Obama, I would really consider getting out,” he said on Bill Bennett’s radio show Wednesday morning. “I don’t.” Meanwhile, a top Santorum adviser told The Huffington Post last night, "The path is for [Gingrich] to move aside and let us have a one-on-one shot with Romney. That's the path."