38 Attorneys General Back Massachusetts Lawsuit Against Kalshi Over Prediction Markets

Key Takeaways:

• Coalition of 38 attorneys wide supports Massachusetts suit alleging Kalshi enables unlicensed sports betting activity.
• CFTC filing adds to the quality arsenic national regulator claims exclusive authorization implicit prediction markets.
• Court determination successful Massachusetts lawsuit could reshape equilibrium betwixt authorities gambling enforcement and national oversight powers.

Kalshi Sports Betting Lawsuit Draws State Enforcement Push

A bipartisan conjugation of 38 attorneys wide has filed an amicus little supporting Massachusetts’ suit against Kalshi, arguing the level is violating authorities gambling laws by offering sports betting without a license. The filing was submitted to the Supreme Judicial Court of Massachusetts and calls for enforcement of authorities authorization implicit gambling regulation.

New York Attorney General Letitia James said connected April 24:

“ Prediction markets cannot disregard states’ gambling laws that are designed to support consumers.”

The attorneys wide reason Kalshi’s level offers “event contracts” that let users to stake connected outcomes, including sports events, without complying with authorities licensing requirements. Massachusetts sued Kalshi successful September 2025, alleging unlawful sports betting activity. In response, Kalshi argued its offerings are fiscal instruments known arsenic swaps, which autumn nether the Commodity Futures Trading Commission (CFTC)’s authority. The attorneys wide cull that claim, stating the Dodd-Frank Wall Street Reform and Consumer Protection Act was intended to modulate fiscal instruments tied to the 2008 recession, not licence sports gambling nationwide. They reason the statute does not notation gambling and does not displace authorities authority.

States Challenge Kalshi Over Gambling Oversight Stakes

Signatories see attorneys wide 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. The attorneys wide authorities that gambling regularisation has agelong been controlled by states and that immoderate displacement successful authorization would necessitate wide absorption from Congress. At the clip Dodd-Frank was enacted, states were barred from legalizing sports betting nether national law, which remained successful spot until 2018.

Officials besides reason that states are champion positioned to code gambling-related harms, including user extortion and preventing younker exposure. Attorney General Letitia James said:

“Kalshi’s lawsuit contracts for sports are conscionable amerciable gambling by different name, and they should play by the aforesaid rules arsenic each different licensed gambling platform.”

The little highlights that successful 2025 users stake much than $1 cardinal each period connected the platform, with 90% tied to sports betting. The attorneys wide are urging the tribunal to affirm a little tribunal ruling that prevents Kalshi from allowing Massachusetts residents to stake connected sports portion the lawsuit proceeds unless the institution obtains the required license.

Separately, the CFTC said connected April 24 it filed an amicus little asserting exclusive jurisdiction implicit prediction markets, arguing national instrumentality preempts authorities regulation. Chairman Michael S. Selig said: “Congress has entrusted the CFTC with the sole authorization to modulate commodity derivatives markets, including prediction markets.”