David Gergen: “I think he wants to go back to the President Obama, as candidate Obama.”

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 comes out and throws cold water on this, then I don't think it goes anywhere.

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…