The U.S. Constitution gives the power to impose taxes — including tariffs — to Congress. But lawmakers have gradually relinquished power over trade policy to the White House. And Trump has made the most of the power vacuum, raising the average U.S. tariff to more than 18%, highest since 1934, according to the Budget Lab at Yale University.

A federal appeals court on Friday lifted a judge's order blocking U.S. President Donald Trump's administration from stripping hundreds of thousands of federal workers of the ability to engage in union bargaining with U.