The Senate failed on Sept. 15 to invoke cloture on the motion to proceed with H.R. 3633, the CLARITY Act, by a 49-50 vote, leaving the crypto market-structure bill stalled before debate could begin. Every voting Democrat opposed cloture, while Republicans Susan Collins, Josh Hawley, Jerry Moran and Thom Tillis voted against advancing the measure; Sen. Chris Coons did not vote. Tillis switched his vote to no so he could file a motion to reconsider, preserving a procedural route for the Senate to revisit the question. Sen. Cynthia Lummis blamed Democratic opposition on politics surrounding President Donald Trump, while Democratic negotiators said unresolved ethics provisions covering crypto interests of the current and future presidents and members of Congress prevented an agreement. The Senate text reflected more than 120 Democratic-requested changes, including provisions involving DeFi registration, stablecoins, state enforcement and prediction markets. The House passed H.R. 3633 by 294-134 in July 2025, including 78 Democratic votes. Democratic senators said bipartisan talks should continue, while lawmakers and industry participants warned that continued delay would leave digital-asset companies operating without comprehensive federal market-structure rules.