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Obama leads in two Wisconsin polls, with third on the way

Two polls out Wednesday show President Barack Obama on top of GOP presidential nominee Mitt Romney in the swing state of Wisconsin.

Obama leads, 54 percent to 40 percent, in a Marquette University Law poll released Wednesday afternoon. The same poll found Obama with a narrower, 49 to 46 percent, lead over Romney before both party conventions, and shortly after the Republican candidate named Wisconsin Rep. Paul Ryan as his running mate.

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President Barack Obama greets guests during an event to honor the WNBA champion Minnesota Lynx , at the White House on September 18.

A separate poll of Wisconsin voters conducted by Quinnipiac University, the New York Times and CBS News also found Obama with an advantage in the Badger State. Obama led by six points, 51 to 45 percent, in that poll released this morning.

NBC News considers Wisconsin a "toss-up" state for purposes of its battleground map. NBC News will have the results of a third poll of Wisconsin, conducted in partnership with Marist College and the Wall Street Journal, on Thursday.

The Marquette poll was conducted Sept. 13-16 and has a 4.1 percent margin of error for its sample of likely voters. The Quinnipiac/NYT/CBS poll was conducted Sept. 11-17 and has a 2.5 percent margin of error.