President Obama has a small edge in two of three key swing states and has gained ground in two of them over the past month, according to new polling from CBS News, the New York Times and Quinnipiac University.

Meanwhile, a separate poll from Gallup and USA Today shows the picture in the swing states remaining largely static, with Obama holding a 48 percent to 46 percent edge over Mitt Romney across all of them.

The Gallup poll does not provide numbers for each individual state, but the Quinnipiac poll tested three states. Here are the numbers:

Colorado: Obama 48 percent, Romney 47 percent

Virginia: Obama 50, Romney 46.

Wisconsin: Obama 51, Romney 45.

Notably, Obama has gained ground in Colorado, where he trailed by five points in the last Quinnipiac poll on Aug. 8, and in Wisconsin, where he led by two in late August. The margin in Virginia is unchanged from the last Q poll in early August.

The numbers echo NBC News/Marist College polls from last week, which showed Obama gaining in Virginia and the two biggest swing states, Florida and Ohio. A Washington Post poll of Virginia released Tuesday also showed Obama significantly ahead, 52 percent to 44 percent.

Polling on the overall race right now seems to be split.

While Gallup continues to show a very close race nationally and in swing states, other pollsters are continuing to show Obama with a slight but noticeable edge.

And as we've noted on this blog before, the polls that really matter are these swing states polls. While Romney showed some momentum in these polls a month ago, most state-specific polls suggest Obama has regained a lead in most of them.