By CNN's Jack Cafferty: It's possible that Mitt Romney could do worse than Sarah Palin. In a piece on the Daily Beast, Michelle Cottle writes that picking a "dull white guy" for vice president could damage Romney big-time. She definitely has a point. After the debacle that Palin was for John McCain in 2008, camp … Continue reading Who's the worst person Mitt Romney could pick to be his running mate?