Under the Speech or Debate Clause members of congress are allowed to lie. They should not be allowed to lie as impeachement managers! Why is it illegal for an American citizen to lie to congress but legal for a congressman to lie to congress? https://www.quora.com/Why-is-it-illegal-for-an-American-citizen-to-lie-to-congress-but-legal-for-a-congressman-to-lie-to-congress