>> according to nbc mitt romney needs to win 48% of the remaining delegates to clinch the nomination and rick santorum needs to win 63%. the only thing standing in rick santorum's way seems to be newt gingrich. the "new york times" nate silver analyzed public policy polling that ask canned republicans in five states who they would vote for if newt gingrich dropped out of the race. slightly more than half, 57% of mr. gingrich's supporters would two to rick santorum and about a quarter, 27% would go to mr. romney. the remainder 16% would actually go to ron paul. now, if we applied those percentages to last night's races, instead of winning alabama by 6%, without newt gingrich in the race, rick santorum would have won with 52% to mitt romney's 37%. and in mississippi, instead of narrowly winning by 2%, rick