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It also appears that President Obama's attacks on Romney's Medicare proposal have not yet resonated among Florida seniors; among voters over 50, the Republican holds a 54-42 percent lead.

In New Hampshire, Romney holds a similar 48-45 percent lead among independent voters, and only trails the president by a single percentage point with women. Again, Romney posted a double-digit advantage over Obama with men and those over 50 years old.

The surveys were conducted through Thursday night, and do not account for any movement that may have occurred after Thursday night's vice presidential showdown between Joe BidenJoseph (Joe) Robinette BidenElizabeth Warren can unify Democrats and take back the White House Giuliani doubles down on Biden comments: 'I meant that he’s dumb' Meghan McCain shreds Giuliani for calling Biden a 'mentally deficient idiot' MORE and Paul RyanPaul Davis RyanTrump vows to stand with House GOP '1,000 percent' on immigration Heckler yells ‘Mr. President, f--- you’ as Trump arrives at Capitol Hoyer: GOP centrists 'sold out' Dreamers MORE.