PPP's first post-conventions poll in Ohio finds Barack Obama with a 5 point lead over Mitt Romney, 50-45. This is the largest lead PPP has found for Obama in an Ohio poll since early May. Last month Obama led 48-45.
Both candidates have seen their images improve with Ohio voters in the wake of the conventions. Obama now breaks even in his approval rating at 48%, after being under water with 46% of voters approving and 51% disapproving of him a month ago. Romney's numbers are up from a 41/52 favorability rating a month ago as well, but he still remains unpopular. Only 44% see him favorably to 49% with a negative opinion.
Romney actually leads 46-44 with independents but Obama has the overall advantage thanks to a more unified party base. He leads 86/11 with Democrats, compared to Romney's 83/13 advantage with Republicans. Obama's 75 point lead within his own party is up from 70 points a month ago, suggesting that his party has coalesced around him a little bit more in the wake of a successful convention. By a 47/35 margin Ohio voters say they think the Democrats had a better convention than the Republicans.
Obama's leading in Ohio because he's not as weak there with some large voter blocs as he is in other states. He trails only 48-46 with men and 50-46 with whites, and actually leads 49-47 with seniors. His performance with those groups is far better than it is nationally- Romney would need much wider leads with them if he was going to take Ohio.
Out of the other Democrats who gave primetime speeches last week Julian Castro made the most positive impression and has a 28/17 favorability rating. Voters are split on Elizabeth Warren at 23/23 and Martin O'Malley doesn't seem to have attracted much attention with 86% of Ohioans saying they have no opinion about him one way or the other.
It's hard to see a path to victory for Mitt Romney without Ohio, and Obama continues to be in a strong position there with eight weeks to go.
Full results here