Wall Street slumps on uncertainty about Trump's trade war

NEW YORK (AP) — The U.S. stock market is careening through a second straight day of stunning swings Tuesday as uncertainty reigns about what whether President Donald Trump will ease up on his trade war, which is scheduled to kick into a higher gear after midnight.

After roaring to an early jump of 4.1%, which had it on track for its best day in years, the S&P 500 quickly lost all of it within a few hours. It then waffled between modest gains and losses before scratching out a rise...