contested encounter. after a meeting at the white house with attorney general jeff sessions, comey says the president asks everyone to clear the room so he can speak with comey alone. >> jim comey looks sort of imploringly over his shoulder at the attorney general saying, don't leave me alone with him, please! something terrible is about to happen. he has a premonition. >> what happens, according to comey, is that trump asks him to back off the investigation of his national security adviser michael flynn, whom he fired a day earlier for lying about his conversations with the russian ambassador. the request raises questions. >> was trump asking comey to move past the flynn investigation because he was being loyal to flynn or is it because there's something that flynn knows? >> comey faces a new challenge two weeks later, when the president tweets that president obama had trump's wires tapped