David Gergen: “This was Barack Obama's argument for pulling out now. That if you set a deadline, things were going to happen.”

You can't out-Nixon Nixon very easily, but Donald Trump has.

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

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

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.