The Globe and Mail reports in its Wednesday edition that the U.S. Supreme Court agreed on Tuesday to decide the legality of President Donald Trump's sweeping global tariffs, setting up a major test of the Republican President's power grab. A Reuters dispatch to The Globe says the justices took up the appeal of a lower court's ruling that Mr. Trump overstepped his authority in imposing most of his tariffs under a federal law meant for emergencies. The court swiftly acted after the administration last week asked it to review the case, which implicates trillions of dollars in customs duties over the next decade. The court placed the case on a fast-track, scheduling oral arguments for the first week of November. The U.S. Court of Appeals for the Federal Circuit in Washington ruled on Aug. 29 that Mr. Trump overreached in invoking a 1977 law known as the International Emergency Economic Powers Act, or IEEPA, to impose the tariffs, undercutting a major priority for the president in his second term. The tariffs, however, remain in effect during the appeal to the Supreme Court. Prior to Mr. Trump, a 1977 law allowing executive action in cases of an "unusual and extraordinary threat" had never been used to impose tariffs.