David Gergen: “But one of the things that Hillary Clinton has done in the last few weeks, she's proven she's a fighter. She will fight…”

I think this the very idea that in 2024, we may have two men running against each other Biden and Trump, who would both be in their 80s if elected, that it too is enough to say, well, what are we doing here?

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

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…