President Barack Obama. (Photo by Alex Wong/Getty Images)
By David Jackson, USA TODAY
New polls show continuing leads for President Obama in the key states of Ohio and Florida.
Washington Post surveys show Obama ahead of Republican Mitt Romney by 52%-44% in Ohio, and by 51%-47% in Florida.
"The new polls add to the evidence that Obama has benefited most from the two parties' conventions, a series of sharp, long-distance exchanges and a barrage of television ads," the Post reported.
"Nationally," it added, "polls continue to show a close race, but with new-found momentum for Obama in the battleground states that are likely to decide the election."
The Post also cited "difficult" weeks for Romney, including release of a videotape in which he appeared to criticize Americans who receive government benefits, or who don't pay taxes.
The Post noted: "There are few plausible ways for Romney to win the election were he to lose both Florida and Ohio."
Republicans have said that some polls -- including a Post survey last week showing Obama ahead in Virginia -- over-sample Democratic voters.