II 116th CONGRESS 1st Session S. 691 IN THE SENATE OF THE UNITED STATES March 7, 2019 Mr. Casey (for himself, Mr. Blumenthal , Mrs. Gillibrand , and Ms. Baldwin ) introduced the following bill; which was read twice and referred to the Committee on Finance A BILL To amend title XVIII of the Social Security Act to enhance prescription drug affordability by expanding access to assistance with out-of-pocket costs under Medicare part D for low-income seniors and individuals with disabilities.