But the court tossed out a part of that ruling striking down the tariffs immediately, allowing his administration time to appeal to the Supreme Court.
The decision complicates Trump’s ambitions to upend decades of American trade policy completely on his own. Trump has alternative laws for imposing import taxes, but they would limit the speed and severity with which he could act. His tariffs — and the erratic way he’s rolled them out — have shaken global markets, alienated U.S. trading partners and allies and raised fears of higher prices and slower economic growth.