Interfering with testimony, 18 U.S.C. 1512:
(d) Whoever intentionally harasses another person and thereby hinders, delays, prevents, or dissuades any person from: (1) attending or testifying in an official proceeding […] or attempts to do so, shall be fined under this title or imprisoned not more than 3 years, or both.Breaching a classified space, 18 U.S.C. 793:
(a) Whoever, for the purpose of obtaining information respecting the national defense with intent or reason to believe that the information is to be used to the injury of the United States, or to the advantage of any foreign nation, goes upon, enters, flies over, or otherwise obtains information concerning any […] place connected with the national defense […] Shall be fined under this title or imprisoned not more than ten years, or both.Reprimand, censure, or expel, U.S. Const. art. I, §5, cl. 2:
Each House may determine the rules of its proceedings, punish its members for disorderly behavior, and, with the concurrence of two thirds, expel a member.