Massachusetts vs Kalshi: 38 Attorneys General Square Off Over Prediction Markets

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In the dim corridors where power collapses into rumor and fear, 38 attorneys general gather as if a chorus of conscience, backing Massachusetts against Kalshi. They claim the platform-like some gleaming contraption of modern temptation-peddles sports betting without a license, and thus violates the quiet laws that govern our public square.

Key Takeaways:

  • A coalition of 38 attorneys general supports Massachusetts’ lawsuit, contending Kalshi enables unlicensed sports betting activity.
  • The CFTC has filed an amicus brief, insisting that prediction markets fall under its exclusive authority, and thus federal law preempts state regulation.
  • The court’s decision in this dispute could redraw the fragile boundary between state gambling enforcement and federal oversight, as if fate itself were flipping a coin.

Kalshi Sports Betting Lawsuit Draws State Enforcement Push

A bipartisan assembly of thirty-eight attorneys general gathers like wary clerks in a courthouse of shadows, filing an amicus brief to support Massachusetts’ suit against Kalshi. They argue the platform violates state gambling laws by offering sports betting without a license. The filing lands with gravity before the Supreme Judicial Court of Massachusetts, a demand for the state to enforce its own sovereignty over gambling regulation.

New York Attorney General Letitia James spoke, as if numbering the stern beats of a drum in a world of profit and peril, on April 24:

“ Prediction markets cannot ignore states’ gambling laws that are designed to protect consumers.”

The attorneys general argue Kalshi’s platform offers “event contracts” that permit bets on outcomes, including sports events, without meeting state licensing requirements. Massachusetts sued Kalshi in September 2025, alleging unlawful sports betting activity. In response, Kalshi argued its offerings are financial instruments known as swaps, which should fall under the CFTC’s domain. The attorneys general reject this, claiming the Dodd-Frank Act targeted financial instruments tied to the 2008 recession, not a carte blanche for nationwide sports gambling. They insist the statute mentions neither gambling nor the displacement of state sovereignty.

States Challenge Kalshi Over Gambling Oversight Stakes

Signatories include attorneys general from Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Hawaii, Idaho, Illinois, Iowa, Kansas, Louisiana, Maine, Maryland, Michigan, Minnesota, Mississippi, Nebraska, Nevada, New York, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Utah, Vermont, Virginia, Wisconsin, and the District of Columbia. They remind the country that gambling regulation has long been the province of states, and any shift would require explicit guidance from Congress. When Dodd-Frank was enacted, the law even barred states from legalizing sports betting, a prohibition that lingered until 2018.

Officials also argue that states are best suited to address gambling-related harms-consumer protection, preventing youth exposure, and the moral fatigue that accompanies endless games of chance. AG Letitia James said:

“Kalshi’s event contracts for sports are just illegal gambling by another name, and they should play by the same rules as every other licensed gambling platform.”

The brief notes that in 2025 users wagered more than $1 billion each month on the platform, with 90% tied to sports betting. The attorneys general are urging the court to affirm a lower court ruling that prevents Kalshi from allowing Massachusetts residents to bet on sports while the case unfolds unless the company obtains the required license.

Separately, the CFTC announced on April 24 that it filed an amicus brief asserting exclusive jurisdiction over prediction markets, arguing federal law preempts state regulation. Chairman Michael S. Selig stated: “Congress has entrusted the CFTC with the sole authority to regulate commodity derivatives markets, including prediction markets.”

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2026-04-26 01:27