David Gergen: “The last nine Republican nominees for the presidency have disclosed their tax returns.”

he ought to stay out of this.

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

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.

You can stand up and say we shouldn't be doing this because it's unconstitutional. Therefore, I never have to come to say whether I agree or disagree whether he incited the riot.