Obama ahead in Colorado, Iowa and Wisconsin

President Barack Obama leads Mitt Romney in Colorado, Iowa and Wisconsin, reaching the key 50 percent support threshold in all three battlegrounds, according to the latest NBC News/Wall Street Journal/Marist polls of these states.

In both Colorado and Wisconsin, Obama is ahead by 5 points among likely voters (including those learning toward a candidate), 50 percent to 45 percent.
And in Iowa, the president’s edge over Romney is 8 points, 50 percent to 42 percent. [cont.]

Mark Murray, NBC News