Republican strategist on Mitt Romney: 'Negative ads are what's keeping this guy alive'
"With Romney's Super PAC attack machine having gone unchecked Santorum's Super PAC, it's not a huge surprise that he's rebounded from his early February losses. Nonetheless, despite his financial edge and his willingness to go negative, he still hasn't quite closed the deal, because no matter how much he tears apart his opponents, people still just don't like him very much."
