Prediction-market traders and Coinbase CEO Brian Armstrong are sharply divided over the Senate prospects of the Digital Asset Market CLARITY Act. Kalshi recently priced the probability of the bill receiving more than 60 Senate votes at roughly 22%, while Armstrong has publicly expressed confidence that supporters can clear that threshold.
The disagreement will face a concrete test in September. The official U.S. Senate schedule confirms that cloture on the motion to proceed to H.R. 3633 is scheduled to ripen at 2:15 p.m. on September 15, shortly after lawmakers return from the August recess. Senate Majority Leader John Thune filed the cloture motion on August 8.
September Vote Puts the 60-Vote Threshold in Focus
The September 15 action is procedural rather than a final vote on passage. Clearing cloture would allow the Senate to move forward with consideration of the CLARITY Act, while failure to reach the required threshold would create another obstacle for a bill already delayed through much of the current Congress.
H.R. 3633 has already cleared significant legislative hurdles. The House approved the measure 294-134 on July 17, 2025, with 78 Democrats joining Republicans in support. In May 2026, the Senate Banking Committee advanced the legislation 15-9 following months of negotiations. Those bipartisan votes demonstrate substantial congressional support, but they do not guarantee the coalition required for Senate floor action.
Armstrong remains considerably more optimistic than prediction-market participants. Speaking in Washington in August, the Coinbase chief said he expected the legislation to receive more than 60 votes and characterized the emerging framework as a bipartisan compromise. His assessment represents an industry expectation rather than a publicly documented Senate whip count, leaving room for the market to price considerable legislative risk.
Prediction Markets Highlight Remaining Political Risk
Kalshi’s pricing reflects uncertainty around several unresolved negotiations rather than a conclusion that the bill has no path forward. Senate debates have included disagreements over ethics provisions and other elements of the market-structure framework. Banking Committee Ranking Member Elizabeth Warren, for example, criticized revised July language and argued that the legislation still contained major investor-protection and ethics deficiencies. The remaining dispute is therefore political and substantive, not simply procedural.
The bill would establish a broader federal framework for digital assets and clarify regulatory responsibilities across U.S. agencies. For exchanges, issuers and institutional investors, the September vote matters because it could determine whether comprehensive crypto market-structure legislation advances during the current congressional window, rather than leaving firms to continue planning around existing regulatory fragmentation.
For now, the contrast is unusually clear: Armstrong sees enough bipartisan support to exceed the Senate threshold, while prediction-market traders remain substantially more skeptical. September 15 will provide the first direct test of which view is closer to the actual Senate vote count.
