David Gergen: “It's dishonorable to treat the family, the Warmbier family, this way.”

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

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…

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

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.