For the second month in a row we found Sarah Palin as the most popular of the leading 2012 GOP hopefuls among moderate Republicans. 64% have a positive opinion of her compared to 57% for Newt Gingrich, 53% for Mike Huckabee, and 45% for Mitt Romney. Those numbers are pretty low across the board though. By comparison, 82% of moderate Democrats approve of Barack Obama's job performance. There aren't that many moderate Republicans left- just 27% of the party's voters and about 10% of the overall electorate- but there's no doubt their votes are going to be needed to have...