Stocks plummet on concerns that tariffs will stifle U.S. economy [Video]

The S&P 500 dropped 1.8% after Trump said there was “no room left” for negotiations that could lower the tariffs set to begin Tuesday for imports from Canada and Mexico. Trump had already delayed the tariffs once before to allow more time for talks.

Trump’s announcement dashed hopes on Wall Street that he would choose a less painful path for global trade, and it followed the latest warning signal on the U.S. economy’s strength. Monday’s loss shaved the S&P 500’s gain since Election Day down to just over 1% from a peak of more than 6%. That rally had been built largely on hopes for policies from Trump that would strengthen the U.S. economy and businesses.

The Dow Jones Industrial Average dropped 649 points, or 1.5%, and the Nasdaq composite slumped 2.6%.

The …