David Gregory: “Any president has to respect the institution to know that this kind of intrusion is something that could very much come…”

He is the attorney general of the United States. He advises the president. He knew enough to recuse himself from the investigation. He should have been a grown-up and stood up and said that this was wrong.

I think he's lost a lot of credibility among his colleagues on Capitol Hill, to say nothing of the distraction that he's creating for the administration.

But in the end, Trump has to mean something. His leadership has to mean something. It has to improve the country. If he can't demonstrate that, then he's just going to be a polemicist, he's just going to be screaming from the rafters.

I would love to ask Hillary Clinton who no doubt will be happy that he's being fired whether she supports purging someone who's investigating a Russian tie to the election.