S. 4620 · 118th Congress HART Act StageIn committee SponsorAmy Klobuchar Introduced2024-06-20 Latest action2024-06-20 · Introduced in Senate Follow Summary Text Subjects Cosponsors (8) Votes (0) Actions Cosponsors (8) Sherrod Brown Former member Senate OH Democrat Mazie Hirono Current member Senate HI Democrat Jeff Merkley Current member Senate OR Democrat Bernie Sanders Current member Senate VT Independent Tina Smith Current member Senate MN Democrat Chris Van Hollen Current member Senate MD Democrat Elizabeth Warren Current member Senate MA Democrat Ron Wyden Current member Senate OR Democrat