 Congressman Ted Lieu, Democrat from California, the House Democratic Caucus Vice Chair at a news conference today. From a Fox News article, Congress has not invoked its inherent contempt power since 1934 when it resulted in Washington lawyer William McCracken getting a 10-day jail sentence for not sufficiently complying with the Senate subpoena. The case went all the way to the Supreme Court, which backed Congress's right to exercise its inherent contempt powers. That was from Fox News.