Those moves come after Trump's latest Truth Social post suggested to investors the president may not follow through on his threat to post a "massive increase of tariffs" on China.

Stocks had been heading for a slight gain in the morning, until Trump took to Truth Social. and said he’s considering “a massive increase of tariffs” on Chinese imports.

Those moves come after Trump's latest Truth Social post suggested to investors the president may not follow through on his threat to post a "massive increase of tariffs" on China.