Jamie Raskin actually said...

I was a little disappointed. You refused to answer questions about conversations with Attorney General Sessions.

The rule that's being violated is that every witness owes truthful testimony to Congress.

your decision was also struck down on the basis of the Enumerations Clause, so it was constitutional as well.

The Supreme Court has been perfectly clear in a series of cases... that the fact of ongoing litigation is not a valid grounds for withholdin...