The New York Times has details on McNulty’s resignation, noting that he “had been shaken by the intensity of the storm over the removals and the sometimes sharp personal criticism directed at him from the White House and former Republican allies.”
McNulty blamed himself for failing to resist the dismissal plan when Mr. Sampson brought it to him in October 2006, according to associates. He took one prosecutor off the removal list but acquiesced to the removal of seven others, according to Congressional aides’ accounts of his private testimony to Congress on April 27. [...]
Friends of Mr. McNulty said he had tried to be candid about what he knew of the removals. In his private Congressional testimony, Mr. McNulty said he did not realize until later the extensive White House involvement in Mr. Griffin’s appointment or Mr. Sampson’s nearly year-long effort to compile a list.
White House aides complained privately that Mr. McNulty’s testimony gave Democrats a significant opening to demand more testimony from the Justice Department and presidential aides. Several aides said he should have been combative in defending the dismissals.