U.S. ConstitutionArticle I — The Legislative BranchSubarticle 5Section 2
Each House may determine the Rules of its Proceedings, punish its Members for disorderly Behaviour, and, with the Concurrence of two thirds, expel a Member.
Use as reference
Lexinter.net | U.S. Const. art. I, § 5, cl. 2 | https://laws.lexinter.net/constitution/us/article-1/section-5/clause-2