The U.S. Supreme Court has postponed a decision on President Donald Trump's global tariffs, which were imposed using emergency powers under a 1977 law. The case challenges the extent of presidential authority over trade and has significant economic implications. Lower courts had previously ruled against Trump's actions. Justices appeared to question the legality of the tariffs during arguments. A ruling is now anticipated on January 14, with the outcome potentially reshaping global trade policy and presidential powers.