Polymarket’s lawsuit could decide who regulates US prediction markets

Polymarket’s lawsuit challenges state authority and could redefine whether the CFTC controls US prediction markets or whether states set their own rules.

Polymarket’s federal lawsuit against Massachusetts could determine whether prediction markets are regulated solely by the CFTC or also by states.

The dispute centers on whether event contracts qualify as financial derivatives under the Commodity Exchange Act or as gambling under state laws.

The lawsuit followed state-level actions against platforms like Kalshi, with Massachusetts and Nevada moving to restrict sports-related prediction contracts.

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