Senate Republicans Drop Revised CLARITY Act Ahead of September 15 Cloture Vote

Senate Republicans released an updated version of the Digital Asset Market Clarity Act as a procedural vote that needs 60 senators approaches next week.

Key takeaways

• Senate Republicans released a revised CLARITY Act text ahead of a September 15 cloture vote on the motion to proceed, a 60-vote procedural hurdle the bill must clear before any floor debate begins.
• The current text includes self-custody wallet protections and a non-custodial software developer safe harbor, provisions that would place a statutory floor under rights the DOJ's Samourai prosecution tested in court.
• Passage odds are long: Polymarket puts 2026 passage at 17%, Galaxy Research has estimated it in the low double digits. A failed cloture vote does not produce stasis, it hands enforcement back to agencies operating without new statutory constraints.

Senate Republicans unveiled the text of the Digital Asset Market Clarity Act (H.R. 3633) ahead of a September 15 cloture vote, first reported by The Block. The move follows a 616-page merged text dropped July 22 by Sen. Tim Scott (R-SC), Sen. Cynthia Lummis (R-WY), and Sen. Thom Tillis (R-NC) combining the Senate Banking and Agriculture Committee versions of the bill.

The September 15 vote is a cloture vote on the motion to proceed, not final passage. At full Republican support (52 votes), the bill still needs 8 Democrats to clear the 60-vote threshold. The Senate returns from recess September 14.

What the Bill Actually Contains

The current text carries two provisions that matter most to Bitcoin holders and builders. First, self-custody wallet protections derived from Keep Your Coins Act language, which would give individuals a statutory right to use non-custodial wallets. Second, a safe harbor for non-custodial software developers against money-transmitter liability, the same legal theory the DOJ used to prosecute Samourai Wallet developers.

The ethics provisions targeting federal officials' crypto holdings sunset January 20, 2029, are not retroactive, and route enforcement exclusively through the Attorney General, not state AGs or private plaintiffs.

Three sticking points remain unresolved: the ethics rules (specifically whether they adequately address Trump's crypto income), the non-custodial developer liability provision, and a stablecoin yield clause. Seven Democratic senators, Alsobrooks, Booker, Cortez Masto, Gallego, Hickenlooper, Warner, and Warnock, said on July 22 the merged text fell short. Sen. Ruben Gallego called the ethics language "not a serious proposal." No confirmed signals of movement from any of them have emerged since the revision dropped.

The bill passed the House on July 17, 2025 by a 294-134 vote and cleared the Senate Banking Committee on May 14, 2026 by a 15-9 margin. White House crypto czar David Sacks has urged the Senate to pass the bill by end of September.

The Stakes on the Floor

The procedural framing around September 15 obscures what's actually at risk. If cloture passes, the bill moves to a full floor debate and amendment process, and that's where the developer safe harbor and self-custody protections become tradeable chips. Any Democratic amendment conditioning a yes vote on weakening the developer liability provision, or any Republican capitulation to banking-lobby pressure to tighten custody rules, erodes the bill's value to the people it most directly affects.

Polymarket's CLARITY Act passage odds have fallen from 82% in February to 17% as of September 10. Galaxy Research has pegged its estimate in the low double digits. The math is straightforward: 52 Republican votes plus 7 Democratic senators who publicly said no equals a bill that dies on the floor without a shift.

Those signals matter because they define the alternative: not a regulatory pause, but active agency rulemaking with no statutory floor under self-custody or developer liability.

A dead CLARITY Act does not produce a neutral outcome. The DOJ's Samourai prosecution, FinCEN's self-custody rulemaking ambitions, and whatever posture the SEC takes on unregistered digital assets all continue on their current trajectories, unrestrained by statute. The enforcement-first regime doesn't wait.

What to Watch

The operative question for September 15 is not whether the bill passes, it almost certainly won't clear the full process in one vote. The question is whether the self-custody and developer safe harbor provisions survive whatever floor amendments Democrats demand as the price of cloture. If those provisions get traded away in ethics horse-trading, the bill that emerges is a framework for surveilled participation. If they survive intact, it's a meaningful statutory protection regardless of the broader "crypto" packaging around it. The Senate floor schedule can shift; check Senate.gov the morning of September 15 for any timing changes.

Update, September 10, 2026

Lummis went on record detailing that the revised CLARITY Act text incorporates over 100 Democrat-driven changes, including 33 edits in Title I alone, 23 new illicit finance sections, and 30 additional CFTC provisions, framing the concessions as evidence that the holdouts are moving the goalposts.

Among the specific revisions: language specifying when DeFi protocols must register with the CFTC and limiting DeFi provisions to spot and cash transactions, added in direct response to concerns from Native American tribes over prediction markets.

On the market side, Polymarket's year-end passage contract ticked up modestly after the news broke, moving from 16% earlier in the day to 19% by mid-afternoon on September 10.

Even with roughly 100 changes absorbed into the draft, it remains unclear whether those compromises are enough to move the eight Democratic senators Republicans need.

The congressional session clock adds urgency beyond the September 15 procedural vote: because sessions run on a two-year cycle, a bill that dies this session must be reintroduced from scratch, a reset that, combined with the 2026 midterms and the 2028 presidential cycle, makes this window the most viable runway the bill is likely to see. Lummis is pushing to close a deal before year-end. The 100 changes are a sign of active negotiation, not finished business.

Sources

• H.R. 3633, Digital Asset Market Clarity Act, Congress.gov
• Paul Hastings CLARITY Act tracker, section-by-section summary
• First reported by The Block