Today's numbers from Gallup in the presidential tracking poll show Mitt Romney two points ahead of Barack Obama among likely voters, 49-47 percent.
Among registered voters, Obama still leads 49-46 percent.
From Gallup's analysis:
First, the registered voter trends suggest that Romney's initial gains from his strong performance in last week's debate may be short-lived. Second, Gallup's inaugural likely voter results suggest that Romney, at this point, appears to have a turnout advantage, meaning that Obama will need to develop a strong lead among all registered voters in order to be assured of winning the actual popular vote.