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Massachusetts AG Amends Kalshi Sports Betting Lawsuit After Ruling

2026-07-03

Massachusetts authorities intensify legal battle against Kalshi – A judge has allowed the state to file an expanded complaint, adding new allegations that the prediction markets platform engages in unlicensed sports wagering and targets underage users.

What Happened

In a Tuesday filing in Suffolk County Superior Court, Associate Justice Peter Krupp permitted Massachusetts regulators to submit a 71-page amended complaint against prediction markets platform Kalshi. This decision effectively expands the state’s ongoing lawsuit, which alleges that Kalshi violated Massachusetts law by offering sports-related wagering without the necessary authorization. The original lawsuit was announced by Massachusetts Attorney General Andrea Joy Campbell in September 2023, arguing that Kalshi needed to be licensed by the Massachusetts Gaming Commission to comply with state rules governing online sports wagers. Earlier in January, a preliminary injunction was issued, barring Kalshi from offering sports event contracts while the case was under review.

Key Details

  • A Massachusetts judge allowed state authorities to submit a 71-page amended complaint against Kalshi.
  • The expanded allegations claim Kalshi’s product effectively functions as sports wagering and that its marketing may reach people under 21.
  • The amended complaint specifically accuses Kalshi of targeting individuals under 21 and not adequately preventing underage users, citing marketing practices and ad creatives.
  • Massachusetts authorities reiterated that Kalshi permits users from age 18 to create accounts and place wagers, a key point of conflict with the state’s online sports wagering approach.
  • The dispute centers on whether Kalshi must be licensed through the Massachusetts Gaming Commission to comply with state regulations.
  • This case is part of a broader national debate concerning whether the CFTC has “exclusive jurisdiction” over prediction markets.
  • Gaming and tribal groups are separately advocating for clearer rules from Congress through the CLARITY Act.

Why It Matters

The judge’s decision to allow an amended, more detailed complaint significantly strengthens the state’s position in its legal challenge against Kalshi. By adding allegations of targeting underage users and reiterating concerns about accessibility for 18-year-olds, Massachusetts is attempting to draw clearer parallels between Kalshi’s offerings and traditional online sports wagering, which has stricter age restrictions. This case sets a precedent for how prediction markets will be regulated in Massachusetts and potentially elsewhere, as it feeds into the wider national discussion about the jurisdiction over such platforms. The outcome could profoundly impact the operational models of prediction markets and define the boundaries between financial instruments and gambling, with potential implications for consumer protection and regulatory oversight. The move by the Massachusetts AG follows an initial injunction against Kalshi, indicating a persistent and escalating effort by the state to enforce its gaming laws.