Wiktionary
n. The act of obstructing the work of the United States Congress or one of its committees.
WordNet
n. deliberate obstruction of the operation of the federal legislative branch
Wikipedia
Contempt of Congress is the act of obstructing the work of the United States Congress or one of its committees. Historically, the bribery of a senator or representative was considered contempt of Congress. In modern times, contempt of Congress has generally applied to the refusal to comply with a subpoena issued by a Congressional committee or subcommittee—usually seeking to compel either testimony or the production of documents.
Usage examples of "contempt of congress".
Nixon would like nothing better than to stampede the House of Representatives into a televised Yea or Nay showdown, based on charges no more serious than Contempt of Congress, Contempt of Court(s) and, by implication, the grossest kind of contempt for everybody in the country with an I.
He is now in danger of being held in contempt of Congress, and there is even a movement amongst certain of the more rabid Democrats to have him expelled from the House of Representatives.
That's when the committee really rose to its feet in righteous indignation: they mauled him for hours, and the next day they sent down an indictment for contempt of Congress.