Actually most recent polls show Obama with a lead margin of between 11% and 15% over Romney, but with ~10% undecided. The majority of undecideds typically end up against the incumbent. Assuming that holds true in Mass, all Romney might be looking at 45% of the vote against Obama's 55% if the election were held today.
It depends who they are. In Texas, the undecideds are almost all Republicans. In Massachusetts, they are Dems or lean-Dems. By November, each group will have been reminded who they really support at heart and those gaps will grow.
Undecideds in all places tend to be 50-50.
