Larry Marano/WireImage/Getty Images; Charles Dharapak/AP Photo

President Obama has stifled Mitt Romney's gain in the polls, presumably by saturating the media with unflattering tales of Bain Capital from years ago rather than unflattering tales of the economy right now.

Gallup reported Monday that Obama leads Romney 48 percent to 43 percent across the country. Romney jockeyed with Obama throughout most of June, at several points leading but within the margin of error. Obama has pulled away from Romney in recent days; his five-point lead is the biggest since April, according to Gallup.

The good news for the Obama campaign comes as Democrats circulate a flurry of stories about the success of attack ads paid for by the president's super PAC that are aimed at Bain, the private-equity firm Romney founded.

Those ads feature salt-of-the-earth working class specimens who lost their jobs at companies bought by Bain; they also accuse Romney of sending jobs overseas in the Obama campaign's effort to make the "outsourcer-in-chief" label stick.

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In an email, the Democratic National Committee insisted that "actual voters" care about Romney's time at Bain.

"In swing states all over the country, the American people are finding that the more they learn about Mitt Romney's career at Bain Capital, the less there is to like," Obama's team said.

An NBC/Wall Street Journal poll, for example, found that Obama led Romney 50 percent to 42 percent among voters in swing states, where the anti-Bain ads have run. Romney has also seen his "favorable" rating dip in battleground states, too.

Obama's super PAC, which is technically independent from the campaign, has spent $10 million on the ads since May, according to Bill Burton, the group's founder.

At a press conference in May, Obama said that "this campaign is going to be about" Romney's time at Bain.

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