President Donald Trump blamed Democrats for Thursday's steep sell-off on Wall Street, saying in a series of posts on Truth Social after the closing bell that the market had suffered one of its worst days in history because of the results of Tuesday's midterm elections.

"The Stock Market suffered one of the Worst Days in History based on the results of the Election. Such a sad thing to watch!" Trump wrote. "Your 401(k)s have, therefore, dropped. Remember, it wasn't Republicans, it was Dumocrats. Do not fear, however, we will soon, one way or the other, be BIGGER AND STRONGER THAN EVER BEFORE."

In a second post, Trump went further, telling voters the crash was their own doing. "The Stock Market crashed today because the Dumocrats had a big Tuesday - So sad to see, you only have yourselves to blame!" he wrote, adding that he had not been on the ballot and claiming the outcome would have been a landslide had he been.

The comments came after a brutal session on Wall Street. The Nasdaq Composite fell 5.52 percent to 24,315.00, its worst day since April 4, 2025, and closed in correction territory. The S&P 500 dropped 4.36 percent to 7,353.73, and the Dow Jones Industrial Average lost 1,833 points, or 3.44 percent, to close at 51,523.06. The losses erased all of Wednesday's post-election rally, when the Dow had jumped about 1,570 points and the S&P 500 had risen 1.58 percent.

The scale of the damage was vast. Companies listed on the Nasdaq lost roughly $2.5 trillion in market value during the session, while S&P 500 companies lost about $2.9 trillion, and the seven largest technology stocks alone shed more than $1 trillion. Chipmakers and companies building artificial-intelligence infrastructure led the decline, with Nvidia falling 9.3 percent and Advanced Micro Devices dropping 17.3 percent.

Financial analysts pointed to fears of tighter regulation of the artificial-intelligence industry after Democrats won control of both chambers of Congress, along with uncertainty over large data-center projects after Texas Governor-elect Gina Hinojosa campaigned on pausing new construction unless it benefits Texans. The White House has not announced any new economic policy in response to the sell-off, and investors now turn to Friday's October jobs report for the next test of the economy.