II 116th CONGRESS 1st Session S. 1728 IN THE SENATE OF THE UNITED STATES June 5, 2019 Mr. Markey (for himself, Mrs. Capito , Ms. Collins , and Mr. Van Hollen ) introduced the following bill; which was read twice and referred to the Committee on Homeland Security and Governmental Affairs A BILL To require the United States Postal Service to sell the Alzheimer's semipostal stamp for 6 additional years.