Jim Himes actually said...

I think he was more comfortable and the proceedings were a lot less adversarial.

I'm encouraging people to remember that you've got three investigations out there, House, Senate, and the Mueller investigation.

If the president knew that these contacts were going on, authorized these contacts... that gets you pretty close to anybody's definition of ...

If Congress wants you here, you come. If you don't appear voluntarily and Congress thinks it's important, you will be subpoenaed.