By David Lawder, Andrea Shalal and Ann Saphir
WASHINGTON (Reuters) -The U.S. Supreme Court’s tough questioning of President Donald Trump’s global tariffs fueled increased speculation that they will be struck down, but raised the specter of additional chaos as he is widely expected to shift to other trade tactics in the wake of an adverse ruling.
On Wednesday during oral arguments, Supreme Court justices cast doubt on Trump’s authority to impose tariffs under the 1977 International Emergency Economic Powers Act (IEEPA), which contains no references to tariffs – only language on regulating imports during national emergencies declared by the U.S. president.


