II 115th CONGRESS 1st Session S. 873 IN THE SENATE OF THE UNITED STATES April 6 (legislative day, April 4), 2017 Mr. Portman (for himself and Mr. Carper ) introduced the following bill; which was read twice and referred to the Committee on Homeland Security and Governmental Affairs A BILL To amend section 8433 of title 5, United States Code, to provide for flexibility in making withdrawals from the Thrift Savings Fund.