Regulators, spurred by the revelation of a wide-ranging accounting fraud at Freddie, began scrutinizing Fannie's books. In 2004 they accused Fannie of fraudulently concealing expenses to make its profits look bigger. Mr. Howard and Mr. Raines resigned. Mr. Mudd was quickly promoted to the top spot. But the company he inherited was becoming a shadow of its former self. 'You Need Us' Shortly after he became chief executive, Mr. Mudd traveled to the California offices of Angelo R. Mozilo, the head of Countrywide Financial, then the nation's largest mortgage lender. Fannie had a longstanding and lucrative relationship with Countrywide, which sold more loans to Fannie than anyone else. But at that meeting, Mr. Mozilo, a butcher's son who had almost single-handedly built Countrywide into a financial powerhouse, threatened to upend their partnership unless Fannie started buying Countrywide's riskier loans. Mr.