Stocks drop after Trump ramps up new tariffs and investors dump potential AI losers

NEW YORK (AP) — U.S. stocks slumped Monday after President Donald Trump ramped up his newest tariffs, while investors continued to punish companies that could be losers in the artificial-intelligence revolution.READ MORE: Trump increases global tariffs to 15% after Supreme Court decisionThe S&P 500 fell 1% after Trump said on Saturday that he would place temporary 15% tariffs on other countries. That's up from the 10% rate he announced Friday following a Supreme Court ruling that struck down his sweeping "r ...