FRANKFORT, Ky. (AP) — A coalition that includes Kalshi, Crypto.com and Polymarket filed a lawsuit Friday challenging Kentucky’s first-in-the-nation excise tax on prediction markets . The Kentucky General Assembly in April enacted a 14.25% tax on prediction market operators’ transaction fees, a levy the lawsuit says is discriminatory, unconstitutional and preempted by federal law. Prediction markets are platforms where customers can buy, sell or trade event contracts — a form of derivative that