David Gergen: “It's one of the first serious rebellions we've seen by the Democrats against the President since he took office.”

If he had a receptive audience, and I will tell you, when everything -- when all the facts were to come out, it would be like Nixon and the tapes.

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…

I don't think Trump is out of the woods, even though his poll numbers are not only staying up, they have actually been strengthened some.

The midterms really helped him. They transformed the race, best midterm elections for any president in 20 years.