Chuck Hagel: “I am deeply concerned about the mental health issues faced by our servicemembers and their families.”

Not everyone at the White House has agreed with me.

Biden is a uniter. He's not a divider.

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.

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