David Gergen: “When the President says he's just going to let Obamacare fail. What that means is he is going to let a lot of Americans…”

For Donald Trump to go for a 24-plus hours without a word being said is an outrage in and of itself. This is a man who is seeking the nomination of a major political party, very likely to get it. And now look at the leadership he is…

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

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…