Some things were clear and many were not in such a complex, tangled investigation. There was no perfect X-ray, no tapes, no engineer's drawing. Dowd believed that the president had not colluded with Russia or obstructed justice. But in the man and his presidency Dowd had seen the tragic flaw. In the political back-and-forth, the evasions, the denials, the tweeting, the obscuring, crying "Fake News," the indignation, Trump had one overriding problem that Dowd knew but could not bring himself to say to the President: "You're a fucking liar."