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U.S. pro sports split on prediction markets, NBA move in focus

The NFL has sided with New Jersey in a court fight over prediction markets, filing an amicus brief urging the U.S. Supreme Court to hear the case involving Kalshi. The league argues sports contracts are gambling and that allowing prediction markets to sell them outside state gambling laws threatens game integrity and consumer protection. U.S. appeals courts have issued conflicting rulings. Other leagues have partnered with prediction market operators, while attention is turning to the NBA\'s next move.