Ohio Leads 39-State Coalition Urging Supreme Court Review of Prediction Market Case

Ohio is spearheading a bipartisan coalition of 39 states and the District of Columbia asking the U.S. Supreme Court to decide whether state gambling laws apply to sports event contracts traded on federally regulated prediction market platforms. In an amicus brief filed October 7 in the Supreme Court docket for New Jersey’s case against KalshiEX LLC, the state attorneys general – led by Ohio Attorney General D. Andrew Wilson – argue that conflicting appellate rulings have created legal uncertainty that undermines states’ traditional authority to regulate gambling within their borders.