CME Group CEO Terrence Duffy characterized the CFTC's attempt to expand regulatory authority over prediction markets as "a bit of a stretch," forecasting that the dispute will ultimately reach the U.S. Supreme Court. Duffy expects state and tribal governments to prevail against federal regulators in the impending legal battle over jurisdiction. The comments highlight growing tension regarding oversight of platforms like Polymarket and Kalshi as the sector expands. CME Group, one of the world's largest derivatives exchange operators, is closely monitoring the regulatory landscape as prediction markets attract increased attention and scrutiny from multiple government entities.