II 115th CONGRESS 1st Session S. 2256 IN THE SENATE OF THE UNITED STATES December 20, 2017 Mr. Hatch (for himself, Mr. Grassley , Mr. Crapo , Mr. Roberts , Mr. Thune , and Mr. Isakson ) introduced the following bill; which was read twice and referred to the Committee on Finance A BILL To amend the Internal Revenue Code of 1986 to extend expiring provisions, and for other purposes.