What atrticle and section in the us constitution states that the members of Congress cannot be arrested or sued for anything they say in Congress?

Answer 1

Article I, Section 6, Clause 1 states in part,

"[The Senators and Representatives] shall in all Cases, except Treason, Felony and Breach of the Peace, be privileged from Arrest during their Attendance at the Session of their respective Houses, and in going to and returning from the same; and for any Speech or Debate in either House, they shall not be questioned in any other Place."

Answer 2

The article and section in the US Constitution that states that members of Congress cannot be arrested or sued for anything they say in Congress is Article I, Section 6, known as the Speech or Debate Clause. It provides congressional members with immunity from legal action for their legislative activities and protects them from being questioned in any other place for their speech or debate in Congress.