A Massachusetts judge has allowed state authorities to expand their lawsuit against prediction markets platform Kalshi, extending the legal fight over whether the company’s sports event contracts should be regulated as online sports wagering. In a Tuesday filing in Suffolk County Superior Court, associate justice Peter Krupp permitted Massachusetts regulators to submit a 71-page amended complaint, adding new allegations to the state’s initial case that Kalshi violated Massachusetts law by offering sports-related wagering without the required authorization. Key takeaways A Massachusetts judge allowed the state to file a 71-page amended complaint against Kalshi, keeping the case active. The expanded allegations claim Kalshi’s product effectively functions as sports wagering and that its marketing may reach people under 21. Massachusetts’ argument hinges on whether Kalshi must be licensed through the Massachusetts Gaming Commission to comply with state rules. The dispute also sits...