II 116th CONGRESS 1st Session S. 647 IN THE SENATE OF THE UNITED STATES March 5, 2019 Mr. Schatz (for himself, Mr. Van Hollen , Mr. Merkley , and Mrs. Gillibrand ) 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 impose a tax on certain trading transactions.