It's well documented that Sarah Palin has problems with Democrats and independents, but the first seven states where we've looked at the 2012 Presidential election make it clear that she has a Republican problem as well. It's not that Republicans don't like her- on our last national poll 68% rated her favorably, making her easily the most popular prospective 2012 candidate with Mike Huckabee at 63%, Newt Gingrich at 57%, and Mitt Romney at 56%. It's that a lot of the Republicans who don't like her- in contrast to the Republicans who don't like Huckabee, Gingrich, or Romney- aren't willing...