Chuck Hagel: “I just think, am I sad that this is going to be a party-line vote? Yes, I am.”

This is really authoritarian.

This is so unpredictable. And we've never seen anything quite like this in our lifetime, so there is no playbook here.

The facts speak for themselves, and especially when you look at the many of the witnesses, who are Trump cabinet members, White House officials in the Trump administration, supporters of Mr. Trump.

No one person should ever govern a party. That’s not the point of political parties. Political parties must be diverse, have different opinions.