David Gergen: “We need someone who is -- yes, has integrity, yes, has judgment. Those are obvious. But we're going to need someone with…”

It's very, very big. Not legally, but politically, it's a very, very big deal.

I think the evidence is still coming in that this country is deeply divided.

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.

Maintaining the status quo with regard to the filibuster is unacceptable for him.