Romney insiders in Santorum say that each candidate has worrisome issues . Romney has been seen as too centrist , says poll . The anti-Romney vote is split between Ron Paul 's and South Carolina . `` For the first time in my professional life I am not working for a candidate and undecided on whom I will vote for . Gingrich national security positions keep him out of mainstream , says poll .
Romney insiders in Santorum say that each candidate has worrisome issues . Romney has been seen as too centrist , says poll . The anti-Romney vote is split between Ron Paul 's and South Carolina . Gingrich national security positions keep him out of mainstream , says poll .