The United States Senate failed to invoke cloture (the procedure for ending debate) on a motion to proceed to H.R. 3633, known as the CLARITY Act, leaving the crypto market structure bill short of the 60 votes required for advancement. More than 40 senators voted against the procedural motion on Tuesday afternoon, effectively halting comprehensive Senate work on crypto market structure legislation for 2026. Republicans hold 53 of the Senate's 100 seats, so at least seven Democratic or independent senators were needed to join them. The bill, introduced by Representative French Hill of Arkansas on May 29, 2025, passed the House 294-134 on July 17, 2025. Its Senate version, amended and reported by the Senate Committee on Banking, Housing, and Urban Affairs on June 1, 2026, would have divided digital-asset oversight between the SEC (U.S. securities regulator) and CFTC (U.S. derivatives regulator). Republican sponsors released a final substitute on Sept. 14, saying it reflected 126 Democratic requests, but Democrats' late counteroffer was rejected before the vote. H.R. 3633 remains on the Senate calendar, although a renewed effort would require Majority Leader John Thune to refile cloture and rebuild support. Any Senate substitute would also need House concurrence before reaching the president.