Chuck Hagel: “Bilateral, never unilateral. Nothing was ever suggested on a unilateral basis to take down our arsenal. Negotiated…”

When the National Guard opened up on students and killed students, partly because they weren't trained, they panicked.

I think the GOP is in a lot of trouble. And I do think an encouraging sign, I think the strong control that Mr. Trump has exercised over the Republican Party is dwindling.

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.