“IEEPA nowhere mentions tariffs, duties, imposts, or taxes, and no other President in the statute’s nearly 50-year history has claimed that it authorizes tariffs,” the companies added in a filing with the appeals court.

President Trump may have gotten his way with tariffs on some countries, but his overhaul of American trade policy has not gone unchallenged.

President Donald Trump has been getting his way on trade, getting the European Union, Japan and other partners to accept high taxes on their exports to the United States. But his overhaul of American trade policy has not gone unchallenged.