Traders work at the opening bell on the floor of the New York Stock Exchange (NYSE) in New York, on February 20, 2026.Timothy A. Clary | Afp | Getty ImagesU.S. equities fell on Monday after President Donald Trump said he's raising his global tariffs following the Supreme Court's decision to strike down his "reciprocal" tariffs.The Dow Jones Industrial Average dropped 807 points, or 1.6%. The S&P 500 shed 1.2%, while the Nasdaq Composite declined 1.4%.Trump continued to assert his ability to incr...