From Public Policy Polling, a firm that typically surveys for Democrats and liberals:
You can talk about the economy and unemployment and Afghanistan all you want but Barack Obama has one huge asset when it comes to his reelection bid: the Republican Party. And nowhere is that clearer than in the vital state of Florida where voters are split pretty much right down the middle on the President, but nevertheless leaning toward reelecting him at this point.
48% of voters in the Sunshine State approve of the job Obama's doing to 49% who disapprove. Republicans are more unified in their disapproval of him (87%) than Democrats are in their approval (81%) and independents split against him by a 48/49 margin identical to his overall numbers.
Despite Obama's tepid approval numbers he still has at least a 4 point lead against all of his top potential challengers. It's 47-43 over Mitt Romney, an 8 point advantage over Tim Pawlenty at 48-40, a 9 point edge against Michele Bachmann at 49-40, an 11 point spread against Herman Cain at 48-37, and a 12 point blowout over Sarah Palin at 52-40.
Analysis here: Download PPP_Release_FL_624925