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NFL backs Supreme Court review of state authority over sports prediction markets

Inc. reported the NFL filed an amicus brief supporting New Jersey's request for Supreme Court review of whether sports event contracts fall under state gambling law, alongside attorneys general for 39 states and Washington, DC. The CFTC responded that the NFL declined to sign a memorandum of understanding with the regulator on market integrity.

The NFL has backed New Jersey’s effort to secure Supreme Court review of whether sports event contracts fall under state gambling law, according to Inc. The league filed an amicus brief supporting the state’s request.

Attorneys general for 39 states and Washington, DC, also support New Jersey’s request, Inc. reported. That places the NFL alongside a broad group of state officials seeking review of the legal treatment of sports prediction markets.

State authority and market integrity

The dispute concerns whether state gambling laws apply to sports event contracts. According to Inc.’s October 31, 2026 report, Kalshi’s response is due November 9. That deadline is a procedural milestone, not a date for a Supreme Court decision.

The Commodity Futures Trading Commission (CFTC), meanwhile, said the NFL had declined to sign a memorandum of understanding with the regulator on market integrity, according to Inc. Its response adds a separate point of contention over cooperation on market oversight.

What it means for prediction markets

  • State-law exposure is the central issue: The requested review concerns whether sports event contracts fall under state gambling law.
  • November 9 is the next identified deadline: Kalshi’s response is due then; the supplied reporting does not establish whether the Supreme Court will take the case.
  • Integrity oversight is also contested: The CFTC’s account of the unsigned memorandum highlights a disagreement with the NFL beyond the request for judicial review.
KalshiNFLCFTCSCOTUSInfiniti MarketsInfiniti Signals

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