Pro-Obama super PAC picks up the fundraising pace WASHINGTON -- So are wealthy liberals finally opening their checkbooks for a super PAC backing President Obama? The folks at Priorities USA Action, the group formed by two White House aides, seemed chipper Wednesday about their latest fundraising figures filed with the Federal Election Commission: the group raised $4 million in May, its best month yet, and is on track to exceed that amount in June. To date, Priorities has raised $20 million and has another $20 million in pledges, an official with the group said. The super PAC hopes to raise $100 million in all. In comparison, Restore Our Future, the pro-Mitt Romney super PAC, which raised nearly $5 million last month, had banked more than $61 million in all by the end of May. While the Democratic group has yet to attract the flood of seven-figure checks that are going to conservative outside groups, it did collect three $1 million donations last month. One came from Tennessee and Washington D.C. developer Franklin Haney Sr., who once tried unsuccessfully to become the owner of Major League Baseball's Washington Nationals. Haney, who worked for U.S. Sen. Albert Gore Sr., was once charged with illegally reimbursing employees and friends for $86,500 in contributions to the two Clinton-Gore presidential campaigns, and two Senate races. The Obama campaign has pledged not to take money from lobbyists, but the super PAC accepted $500,000 from Perennial Strategy Group, which has lobbied for commercial banks and the MGM Mirage, among other clients. The incoming funds have helped Priorities finance $15 million worth of television ads attacking Romney for his tenure at Bain Capital, among other topics. The group plans to spend another $10 million on TV spots this summer. Despite the uptick in money going to the super PAC, Obama campaign officials said Wednesday the other side will still have the advantage in outside money. They are prepared for the president to be the first incumbent who will be outspent by a challenger -- bracing for Romney and his allies to pump more than $1 billion into TV ads alone. "To many on their side this is a business investment," one official said. Our large donors, they don't approach it that way. The president himself did and continues to and we do express real concern about the implication for democracy of this system. And so there's hesitancy on the part of our folks to participate at this level. Michael A. Memoli and Kathleen Hennessey in Washington contributed to this report.