(CNN) - Barack Obama on Tuesday brushed aside the notion that the head of his vice presidential search committee, Jim Johnson, contradicts the campaign's message because he has received favorable loans from Countrywide Financial - one of the companies at the center of the nation's mortgage crisis.
"I am not vetting my VP search committees for their mortgages," Obama said during a press conference in St. Louis, Missouri. "I mean this is a game that can be played - everybody you know who is anybody who is tangentially related to our campaign I think is going to have a whole host of relationships."
The comments come two days after the Wall Street Journal reported that Johnson was the recipient of over $7 million worth of home loans from Countrywide, made available through a program for friends of the company's chief executive officer.
Countrywide has taken a big hit during the current subprime loan crisis. Obama has often taken aim at the practice of issuing subprime loans.
The Republican National Committee immediately seized on that report, saying Johnson's appointment "raises serious questions about Obama’s judgment." Presumptive Republican nominee John McCain also criticized Obama, saying Monday that Johnson’s role "suggests a bit of a contradiction, talking about how his campaign is going to be not associated with people like that."
Obama tapped Johnson, a longtime Washington insider, to head his vice-presidential search late last month. Johnson held the same role for then-Democratic Presidential Candidate John Kerry in 2004. He has long been known for keeping a low profile while holding some of Washington's most powerful posts, including heading up mortgage giant Fannie Mae and the Brookings Institution.
Johnson is currently a vice chairman of Perseus LLC, a private banking firm.
Speaking to reporters on Tuesday, Obama suggested Johnson's past loans are irrelevant to his current position with the campaign.
At some point you know we just asked people to do their assignments," he said. "These aren't folks who are working for me. They are not people you know who I have assigned to a job in the future administration, and ultimately my assumption is that this is a discreet task that they are going to performing for me in the next two months."
McCain spokesman Tucker Bounds said it is "preposterous" for the Illinois senator to claim Johnson isn't working for him.
"Barack Obama has castigated Countrywide Financial, but now that Jim Johnson has been exposed for taking sweetheart deals from Countrywide’s CEO - Obama is in a state of denial," Bounds said. "It’s that brand of weak leadership and hypocrisy that shows why Barack Obama has no record of taking courageous stands or making change in Washington.”