David Gergen: “Mick Mulvaney is I think the weakest Chief of Staff in modern history.”

It is time keep an eye on the Republicans in the Senate.

President of United States has not had a security briefing, or security briefing since October 2nd. I've never heard of any president, under any circumstances, come anywhere close to that, and been so derelict of the duty.

I think the turning point that came were the midterm elections. The fever broke with those midterm elections. And what we've seen since then is a steady decline in Trump's credibility and in his position with the American people, and a…

It's very, very big. Not legally, but politically, it's a very, very big deal.