Question

The Senate and House each sets its own rules, disciplines its own members, and can expel a member with a a two-thirds vote.

Which section of article one would this fit under?

Answer 1

The United States Constitution (Article I, Section 5, Clause 2) provides that "Each House [of Congress] may determine the Rules of its proceedings, punish its members for disorderly behavior, and, with the concurrence of two-thirds, expel a member."