AG Campbell released the following statement after securing a preliminary injunction in her lawsuit against KalshiEX, LLC (“Kalshi”), a self-described online “prediction market.” The court’s order will allow a preliminary injunction to take effect, prohibiting Kalshi from accepting online sports wagers and related events contracts from Massachusetts customers until the company follows the state laws that govern sports gaming, including licensure by the Massachusetts Gaming Commission (MGC). The order also denied Kalshi’s motion to dismiss the AGO’s lawsuit filed against them in September 2025.    
 
“The Court has made clear that any company that wants to be in the sports gaming business in Massachusetts must play by our rules – no exceptions. Today’s victory marks a major step toward fortifying Massachusetts’ gambling laws and mitigating the significant public health consequences that come with unregulated gambling.”  - AG Campbell