Chuck Hagel: “It is an investment in stability and security.”

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

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.

The Chinese are watching this as relates to Taiwan, the Iranians, the North Koreans -- all countries are watching this, and watching the U.S. response to it, and the West response to it.