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.

President Donald Trump‘s sweeping tariffs will be at the heart of a legal drama on Thursday when a federal appeals court weighs his authority to levy them via executive action. The full panel of judges on the United States Court of Appeals for the Federal Circuit will hear arguments in the Trump administration’s appeal of a May

President Donald Trump asked the US Supreme Court to turn away a challenge to his sweeping tariffs, telling the justices they should let the legal fight develop before getting involved.