S. 1236 · 114th Congress Hydropower Improvement Act of 2015 StageIn committee SponsorLisa Murkowski Introduced2015-05-06 Latest action 2015-05-19 · Committee on Energy and Natural Resources. Hearings held. Follow Summary Text Subjects Cosponsors (1) Votes (0) Actions Cosponsors (1) James Risch Current member Senate ID Republican