From the NY Times:

One of the giant mortgage companies at the heart of the credit crisis paid $15,000 a month to a firm owned by Senator John McCain’s campaign manager from the end of 2005 through last month, according to two people with direct knowledge of the arrangement. The disclosure contradicts a statement Sunday night by Mr. McCain that the campaign manager, Rick Davis, had no involvement with the company for the last several years. Mr. Davis’s firm received the payments from the company, Freddie Mac, until it was taken over by the government this month along with Fannie Mae, the other big mortgage lender whose deteriorating finances helped precipitate the cascading problems on Wall Street, the people said…

...On Sunday, in an interview with CNBC and The New York Times, Mr. McCain responded to a question about Mr. Davis’s role in the advocacy group through 2005 by saying that his campaign manager “has had nothing to do with it since, and I’ll be glad to have his record examined by anybody who wants to look at it.”

From a Newsweek story titled “Freddie’s Friend”:

Davis’s firm, the Washington, D.C. based lobbying firm Davis Manafort, continued to receive $15,000 a month from Freddie Mac until last month-long after the Homeownership Alliance had been terminated. The two sources, who requested anonymity discussing sensitive information, told Newsweek that Davis himself approached Freddie Mac in 2006 and asked for a new consulting arrangement that would allow his firm to continue to be paid. The arrangement was approved by Hollis McLoughlin, Freddie Mac’s vice president for external relations, because “he [Davis] was John McCain’s campaign manager and it was felt you couldn’t say no,” said one of the sources. [McLoughlin did not return phone calls].