Dow Jones crashes 400 points, Nasdaq falls 2% after Trump threatens more tariffs on China

U.S. stocks tumbled Friday as President Trump threatened a massive tariff increase on China, citing trade hostility and restrictions on rare earth exports. This escalation of trade tensions between the two largest economies led to widespread market drops, with the S&P 500 falling 1.5% and the Dow Jones Industrial Average down 456 points.