Rand Paul: “Petty vindictiveness like this … it makes you wonder about the quality of people you're dealing with.”

A court ultimately would have to determine: Does the Fifth Amendment apply to someone who already has a pardon?

I think there's another legal question that the courts may have to decide upon, and that is whether or not a presidential pardon offers you complete immunity.

Holding a witness in contempt is a serious thing, and it should be rare.

We only have one question: Whether to hold a witness responsible for his contempt toward Congress.