Russ Feingold: “I remain concerned that the military commission process is so discredited that it may not be possible to fix it.”

It is clearly constitutional to hold this trial now and to have the vote on disqualification.

I think they know they`re going to lose. And I think people like Graham may well decide that this is not one to fight on.

I don't think there's any question. They were egging each other on. It would have taken very little for somebody to try to up the ante and actually hang Mike Pence or kill somebody who they could get their hands on.

The answer is going to be Donald Trump. Just like when I was a kid, who is the only president that was ever impeached, Andrew Johnson.