Stock market news live updates: Stocks claw back as volatile trading continues

U.S. stocks capped a turbulent month of May lower on Tuesday after a rally late last week failed to sustain momentum. The S&P 500 fell 0.6% in a choppy session, while the Dow Jones Industrial Average shed 220 points, or 0.7%. The Nasdaq Composite slipped 0.4%. These moves come after all three indexes logged weekly…