Tariff Confusion Fun Reactions to the U.S. Supreme Court’s ruling that general use of tariffs is not within the President’s authority under the International Emergency Economic Powers Act (IEEPA) have been wildly diverse. Mass media headlines initially celebrated the “smack down” of President Trump’s pomposity. That then morphed into uncertainty. The European Parliament first said it was stopping consideration of the transatlantic trade deal forced into negotiation by IEEPA tariffs, then the European Commission warned the White House that “a deal is a deal” when the President reverted to other tariff authorities. Trade policy experts have long noted that there are many alternative U.S. trade authori...