One day after releasing two new TV ads that went after presumptive Republican nominee Mitt Romney, President Barack Obama's reelection campaign on Thursday put out another ad, this one a positive spot.

The ad, called "First Law," touts the fact that the first legislation Obama signed into law was the Lily Ledbetter Act, which made it easier for women to sue employers for pay discrimination.

"President Obama knows that women being paid 77 cents on the dollar for doing the same work as men isn’t just unfair, it hurts families," the Obama ad narrator says.

The campaign said the ad is airing in seven swing states: Colorado, Florida, Iowa, North Carolina, Nevada, Ohio and Virginia.

Watch the ad: