Lynn Vavreck checks in with the fence-sitters:
Taken together, there is good news in these numbers for the president. He has the advantage among undecided voters who are making choices as Election Day draws near, and his initial supporters are quite loyal. Even among the small set of voters changing their minds, Obama is on equal footing with, if not slightly ahead of, Romney. Of course, there are six-and-a-half weeks and three presidential debates to go in the 2012 race. Maybe the last 40 or 50 days will be pivotal — but I’m not betting on it.