S.Res. 423 · 115th Congress A resolution designating February 28, 2018, as "Rare Disease Day". StagePassed chamber resolution SponsorSherrod Brown Introduced2018-03-01 Latest action2018-03-01 · Introduced in Senate Follow Summary Text Subjects Cosponsors (9) Votes (0) Actions Cosponsors (9) John Barrasso Current member Senate WY Republican Cory Booker Current member Senate NJ Democrat Orrin Hatch Former member Senate UT Republican Amy Klobuchar Current member Senate MN Democrat Ed Markey Current member Senate MA Democrat Debbie Stabenow Former member Senate MI Democrat Elizabeth Warren Current member Senate MA Democrat Sheldon Whitehouse Current member Senate RI Democrat Roger Wicker Current member Senate MS Republican