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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 BidenJoe BidenWarren warns Facebook may help reelect Trump 'and profit off of it' Trump accuses Biden of 'quid pro quo' hours after Mulvaney remarks Testimony from GOP diplomat complicates Trump defense MORE and Paul RyanPaul Davis RyanAmash: Trump incorrect in claiming Congress didn't subpoena Obama officials Democrats hit Scalia over LGBTQ rights Three-way clash set to dominate Democratic debate MORE.