“If a guy just turned you down for a job, it certainly creates a question as to whether you could be perfectly objective in making an important decision about that person,” said Trump’s lawyer, Rudy Giuliani, who said there are additional conflicts the legal team is aware of but not making public.

It’s not clear whether Trump turned down Mueller for the job before the special counsel’s appointment, but from that moment on, Trump has complained to aides about a perceived grudge.

Sessions was so rattled by the president’s anger in that interrupted Oval Office meeting that he resigned verbally that day and later submitted a formal letter of resignation, according to the person briefed on the meeting. The Justice Department declined a request for comment.