The group and its campaign affiliate, Crossroads GPS, said it had easily surpassed its initial fundraising goal of $50 million to spend on behalf of Republicans, and has increased its target to $65 million, according to spokesman Jonathan Collegio.
The boffo numbers come after a week in which Obama led Democrats in attacks on the group, which is affiliated with GOP strategists Ed Gillespie and Karl Rove. Both are veterans of President George W. Bush's White House.
Obama accused American Crossroads and the U.S. Chamber of Commerce of possibly receiving money from foreign donors and corporations to fund their electoral activities, a charge the groups deny.
The administration has shown no sign of relenting in their attacks toward the groups, which could have a major impact in the final weeks before Nov. 2, when voters head to the polls in crucial midterm elections.
Collegio said the attacks had only driven interest in the group's activities, and that the increased fundraising would allow Crossroads to spend an additional $10 million in House races, and $5 million more in Senate races.
The Chamber, also in light of Democratic attacks, vowed only to "ramp up" its political activities in the closing weeks of the campaign.
The Wall Street Journal on Wednesday detailed how Crossroads, combined with other allied groups, would be able to spend $50 million on ads in the closing weeks of the campaign to deliver the House to Republicans.
"It’s no wonder Republicans in Congress moved hell and high water to thwart disclosure requirements," said Democratic National Committee (DNC) communications director Brad Woodhouse in response to the WSJ report, referencing the GOP's efforts to block the Disclose Act in the Senate.