McCain campaign is reviewing bundler's donations

John McCain's campaign began on Thursday to review donations brought in by a prominent Florida businessman following disclosures that his business partner, a foreign national, also may have engaged in fundraising.

The campaign is looking into hundreds of thousands of dollars in contributions to make sure that they are appropriate, a spokesman said.

The campaign sent a letter spelling out legal requirements to all donors who sent their contributions through Harry Sargeant III, the finance chairman of the Florida Republican Party.

It's illegal for foreigners to contribute their own money to U.S. campaigns.

The New York Times reported Thursday that Sargeant allowed a longtime business partner, Mustafa Abu Naba'a, to bring in some $50,000 in donations since March from members of a single extended family, the Abdullahs, in California, along with several of their friends.

A House committee chairman is looking into Sargeant's defense contracts for shipping fuel to U.S. bases in Iraq as part of a probe into whether contractors are engaging in overcharging.

McCain spokesman Brian Rogers said Mustafa Abu Naba'a is not a bundler for the campaign, although Sargeant is.

"He wasn't registered, and he hasn't contributed," Rogers said of Mustafa Abu Naba'a.

The campaign letter to donors notes that federal law bars contributions from foreign nationals and that donations cannot be reimbursed.

McCain is co-sponsor of the campaign finance reform law that bears his name and he is trying to move quickly to resolve any questions involving Sargeant.

McCain has "a deep commitment" to strictly following campaign finance law, said Rogers.