Barack Obama’s debate performance won over many voters in the key swing states of Florida, Ohio and Pennsylvania, Quinnipiac polls found. A margin of 13% to 17% of voters in each state said Obama did a better job in the debate, and many have shifted their support. Over the last 20 days, said Quinnipiac's Peter Brown, the swing towards Obama in these states has been unusually sharp.
- Florida, pre-debate: Obama 49%-McCain 43%; post-debate: Obama 51%-McCain 43%.
- Ohio, pre-debate: Obama 49%-McCain 42%; post-debate: Obama 50%-McCain 42%.
- Pennsylvania, pre-debate: Obama 49%-McCain 43%; post-debate: Obama 54%-McCain 39%.