2 U.S.C. § 390 — Penalty for failure to appear, testify, or produce documents

Every person who, having been subpenaed as a witness under this chapter to give testimony or to produce documents, willfully makes default, or who, having appeared, refuses to answer any question pertinent to the contested election^* case, shall be deemed guilty of a misdemeanor punishable by fine of not more than $1,000 nor less than $100 or imprisonment for not less than one month nor more than twelve months, or both.