Gensler Sides With States Against CFTC in Sports Betting Jurisdiction Fight
What You Need to Know
- Gary Gensler filed an amicus brief arguing the CFTC lacks federal authority over sports prediction markets.
- Gensler helped write swap rules at the CFTC but now contends the agency misreads its own mandate.
- Prediction market monthly trading volume reached $28.4 billion in May 2026, with $500 billion total value locked.
- Minnesota criminalized prediction market operations in May 2026; the CFTC sued the state the following day.
Gary Gensler, the architect of the SEC’s aggressive crypto enforcement posture, has filed an amicus brief arguing that the CFTC he once led has no federal authority over sports prediction markets, effectively siding with states against his former agency. The brief, filed with the Sixth Circuit Court of Appeals, contends that sports betting contracts are not financial “swaps” under Dodd-Frank and should remain under state jurisdiction.
The irony is structural: Gensler helped write the swap rules at the CFTC between 2009 and 2014, and now argues the agency is misreading its own mandate. His position aligns with a growing coalition that includes tribal gaming groups, the American Gaming Association, and Better Markets, all filing separately but arriving at similar conclusions. The AGA’s citation of Kalshi’s own trademark application, where the company described its services using language about “sports betting and gambling tournaments,” is the sharpest piece of evidence in the pile. That kind of self-description tends to resurface badly in court. The prediction market sector has been navigating a genuine circuit split: the Third Circuit sided with Kalshi and federal preemption in April 2026, while a federal judge in Ohio ruled against the platform in March, and the Ninth Circuit has leaned toward state authority.
Minnesota criminalized prediction market operations entirely in May 2026, and the CFTC sued the state the following day. That escalation pace suggests neither side expects a negotiated resolution.
The underlying numbers complicate any simple narrative about a niche legal dispute. Monthly trading volume hit $28.4 billion in May 2026, and total value locked across prediction market protocols sits near $500 billion, with weekly volume around $2.9 billion. Those figures put prediction markets firmly in the range where institutional capital, tax revenue, and regulatory turf all become serious considerations simultaneously. For crypto-adjacent platforms operating prediction infrastructure, the outcome of this circuit split determines whether they face a single federal framework or a state-by-state compliance problem that would make U.S. expansion functionally impossible in several jurisdictions. The CFTC’s simultaneous move to propose formal prediction market rules while suing multiple states signals the agency intends to consolidate authority regardless of how individual courts rule.
With the FIFA World Cup expected to drive another volume surge comparable to the Super Bowl spike, the Supreme Court will likely face mounting pressure to resolve the circuit disagreement before the legal patchwork becomes unworkable for both platforms and the states collecting gambling tax revenue.
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