Supreme Court limits presidential authority on global tariffs

The U.S. Supreme Court struck down President Trump's global tariffs imposed under a national emergency law, limiting presidential authority. The 6-3 ruling found Trump exceeded his authority by using the International Emergency Economic Powers Act for tariffs, violating the "major questions" doctrine requiring clear congressional authorization for significant actions. The decision impacts global trade and could require refunds of over $175 billion collected from these tariffs, which Trump used as a key economic and foreign policy tool.