S. 3570 · 111th Congress Hydropower Improvement Act of 2010 StageIn committee SponsorLisa Murkowski Introduced2010-07-13 Latest action2010-07-13 · Introduced in Senate Follow Summary Text Subjects Cosponsors (5) Votes (0) Actions Cosponsors (5) Mark Begich Former member Senate AK Democrat James Risch Current member Senate ID Republican Maria Cantwell Current member Senate WA Democrat Mike Crapo Current member Senate ID Republican Patty Murray Current member Senate WA Democrat