PPP's newest Florida poll finds little change in the state compared to mid-April. At that time Barack Obama led Mitt Romney 50-45 there, and now his advantage is 50-46. Voters in the state narrowly approve of Obama, 49/46, and continue to dislike Romney, giving him a 39/53 favorability rating.
Obama's strength is based on what's become a pretty predictable set of groups. He's up 57-39 with women, 61-36 with Hispanics, 93-7 with African Americans, and 65-27 with voters under 30. Romney's up 52-46 with seniors and 55-41 with whites but he'd need larger advantages with those demographics to be ahead overall.
Neither of Florida's most discussed Vice Presidential prospects would have a huge impact on the race. Marco Rubio is slightly popular with a 44/40 approval rating, but his presence on the ticket would only narrow Obama's lead to 49-46. Rubio would help some with Hispanic voters, taking Obama's lead down to 55-40 with that group, but doesn't make a huge dent overall.