Surging Santorum: I know how to win tough elections

After watching the likes of Rick Perry, Herman Cain and lately, Newt Gingrich emerge as challengers to front-runner Mitt Romney during the long road to the 2012 Republican presidential nomination, former U.S. Sen. Rick Santorum told TODAY Thursday his own sudden surge has legs that the other candidates haven’t shown.In a surprise, former also-ran Santorum has climbed ahead of Gingrich to move in