[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2008/images/10/05/art.boberlin1005.gi.jpg caption="Sen. Obama's July speech in Berlin drew tens of thousands. Now the RNC wants an audit to determine whether the federal ban on contributions from foreign nationals may have been violated."]
(CNN) – The fund-raising prowess of the Obama campaign may be put under a microscope, if the Republican National Committee has its way.

The RNC announced that it plans to file a complaint with the Federal Election Committee Monday that seeks an audit of the more than $450 million donated so far to Sen. Barack Obama’s presidential campaign.

The complaint will address two issues highlighted in a recent Newsweek report about the Obama campaign’s fund-raising. First, the RNC will ask the federal agency responsible for enforcing campaign finance laws to audit and inquire into whether the Obama campaign accepted any money from foreign nationals, a contribution source prohibited under federal law.

“We believe that, based on the law, the Obama campaign has accepted contributions from foreign nationals and has knowingly done so through at least its failure to reasonably investigate where all this money is coming from,” RNC Chief Counsel Sean Cairncross told reporters Sunday.

Listen: RNC announces plans to ask for an audit of Obama camp's fund-raising

The FEC defines foreign nationals as foreign governments, foreign political parties, foreign corporations, foreign associations, foreign partnerships, individuals who are foreign citizens, and immigrants to the U.S. who do not have a “green card,” showing they are permanent residents or are lawfully admitted to the country.

Second, the RNC plans to ask for an audit of possible excessive contributions to the Democratic nominee. “The Obama campaign has a track record of accepting these,” Cairncross told reporters, referring to recent FEC requests directed at the Obama campaign to explain what appear to be multiple small donations from single donors listed in the campaign’s finance reports which violate the contribution limits when aggregated.

The Obama campaign was quick to turn the McCain camp's critical eye back onto McCain's own fund-raising. “Because of campaign finance issues, John McCain has had to return over $1.2 million to donors who potentially violated the law with their contributions," Obama spokesman Bill Burton said in a statement Sunday. "We look forward to a thorough investigation into whether John McCain’s campaign has returned all of the money it raised from foreign nationals," Burton added.

The Obama campaign also responded to the RNC's claims that it may have received some contributions prohibited by federal law. "Without accepting a dime from the Washington lobbyists or corporate PACs that have funded John McCain's campaign, our campaign has shattered fundraising records with donations from more than 2.5 million Americans. We have gone above and beyond the transparency requirements by disclosing our bundlers and the levels of contributions they raise. We constantly review our donors for any issues and while no organization is completely protected from internet fraud, we will continue to review our fundraising procedures to ensure that we are taking every available to step to root-out improper contributions,” Burton said.

FULL POST