II 118th CONGRESS 1st Session S. 3409 IN THE SENATE OF THE UNITED STATES December 5, 2023 Mr. Markey (for himself, Ms. Warren , Mr. Sanders , and Mr. Welch ) introduced the following bill; which was read twice and referred to the Committee on the Judiciary A BILL To end the use of solitary confinement and other forms of restrictive housing in all Federal agencies and entities with which Federal agencies contract.