 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 a 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.