A US healthcare group says the rapid spread of online sports betting and prediction markets may contribute to compulsive behavior, distorted risk perception, and other mental health harms.
Several New Mexico tribal governments are suing Kalshi, arguing that its sports-related prediction markets amount to illegal gambling on tribal lands and threaten gaming revenue tied to public services.
House Democrats want subpoena power to examine whether traders used nonpublic information to profit from prediction markets tied to U.S. military action and Iran-related events.
