David Gergen: “Both sides frankly are playing dirty.”

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…

No, their problem is Anderson, he's got more support back in their districts in their states than they do and that gives him enormous -- it gives him enormous leverage against them.

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…

We're entering some kind of the most dangerous days of Donald Trump's presidency. He is erratic.