A.M. Edition for May 29. A U.S. federal trade court has ruled President Trump lacked the authority to impose global tariffs, blocking one of the administration’s boldest assertions of executive power. While stock futures are rallying today, WSJ deputy finance editor Quentin Webb says that decision adds to investor uncertainty over the future of U.S. trade policy. Plus, Elon Musk announces his looming exit from government. And Nvidia’s business booms, even as its CEO critiques U.S. efforts to shut China out of the global chips market. Luke Vargas hosts.

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