Prediction Market Kalshi Faces Mounting Legal Setbacks as Federal Courts Uphold State Gambling Authority

The US Court of Appeals for the Sixth Circuit ruled in September 2026 that Ohio and Tennessee may enforce their gambling laws against Kalshi's sports prediction contracts, rejecting the company's argument that federal commodity regulation should preempt state oversight. The decision deepens a split among federal appeals courts, following similar losses in the Ninth Circuit in August while Kalshi achieved a favorable ruling from the Third Circuit in April, creating inconsistent legal treatment across jurisdictions. The conflict centers on whether Kalshi's sports-event contracts qualify as federally regulated commodities or whether they constitute gambling subject to state law, an issue that may eventually require Supreme Court review.

Kalshi operates as a federally supervised prediction market where participants trade contracts based on real-world event outcomes, including sports competitions. The company's business model depends on federal commodity regulation to legitimize its products, but state authorities argue that contracts resembling sports wagers fall under traditional gambling jurisdiction. The litigation involves more than twenty states across multiple federal circuits, creating a patchwork of legal requirements that forces Kalshi to implement geofencing technology to restrict access in unfavorable jurisdictions.

The core dispute reflects a fundamental question about regulatory authority: whether a single federal agency can preempt state law based on its own licensing decisions. The Sixth Circuit's September ruling aligns with the Ninth Circuit's August decision against Kalshi, while the Third Circuit's April ruling favored the company, generating conflicting legal precedent across regions. This inconsistency may eventually require the Supreme Court to clarify whether states retain power to regulate event-based contracts or whether federal commodity oversight supersedes such authority nationwide.