Washington (CNN) - The Democratic super PAC backing President Barack Obama, Priorities USA Action, is significantly ramping up its media spending as it reserves $30 million in broadcast and cable ad time come this fall, sources familiar with the matter confirmed to CNN.
The group, run by two former Obama White House officials, has not actually yet purchased the ad time in the critical states of Colorado, Iowa, Florida, Ohio, Pennsylvania and Virginia, the sources said.
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Because of increasing donations, the group is able to increase its advertising efforts and expand them into Iowa in September – a state it has not advertised in yet, the sources said.
The group believes its ads hitting Mitt Romney over his time as head of the private equity firm Bain Capital have paid dividends, especially in Pennsylvania. As the new Quinnipiac University-CBS News-New York Times poll shows Obama with an 11 point lead there, Priorities is not reserving time there in September – only in October. Some of those resources will be shifted to other states.
The super PAC, which has raised $16 million as of the end of June, has seen the pace of its fund-raising pick up, although one source acknowledged "there's a lot more work to do."
Priorities is competing with several major Republican super PACs, including Restore Our Future, the primary one backing Romney and which could raise as much as $100 million, and the groups American Crossroads and its non-profit affiliate Crossroads GPS, which are expected to raise $300 million-with a lot of its money to be spent on the presidential race.
Priorities, meanwhile, is also continuing its Spanish language ad partnership with the Service Employees International Union (SEIU) in Colorado, Florida and Nevada.
The Washington Post first reported Priorities' new ad time plans.