US markets tumble amid Wall Street concern over job losses and AI

Wall Street has been rattled by a review of Donald Trump’s tariffs by the supreme court.Photograph: Seth Wenig/AP Fears that the US economy is slowing, with firms shedding jobs and imposing hiring freezes, sent Wall Street tumbling on Thursday. The S&P 500 index of leading firms was down 1.1% as investors also highlighted concerns about the potential for a slump in the value of businesses that have benefited from huge investments in artificial intelligence. The tech-heavy Nasdaq Composite fell 1.9%. A re ...