Nvidia commits $500 billion to expand U.S. AI manufacturing, Zuckerberg testifies as Meta’s antitrust trial begins, more news to start your day.

President Trump’s widespread tariffs have unleashed carnage on U.S. stocks, fears of a global trade war and dread about the American economy. Equities endured a historic two-day plunge that landed the blue-chip Dow Jones Industrial Average in correction territory on Friday and the tech-heavy Nasdaq Composite in a bear market.