In a major legal setback, the Supreme Court of the United States has struck down President Donald Trump’s sweeping global tariffs, ruling that he exceeded his authority. In a 6–3 decision, the court questioned the use of national emergency powers to justify broad trade penalties, with the Chief Justice stating that the United States is not “at war with every nation in the world.” However, the ruling does not impact all of Trump’s trade measures. What does this mean for US trade policy, executive power, and global markets? Here’s a full breakdown of the decision and what comes next.