David Gergen: “I think this was a new Mitt Romney we saw last night or one we haven't seen before.”

He is a leader there's no question about that. But I think he's a bad leader. I think he's leaving his people into, he's leading the country, especially into a very bad place.

It is time keep an eye on the Republicans in the Senate.

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…

I think the Republicans need to have an intervention.