U.S. Stock Futures Slide as Traders Brace for Potential Democratic Midterm Sweep

U.S. stock futures fell as investors weighed the possibility that Democrats would gain control of Congress and secure key gubernatorial victories in the 2026 midterm elections.

U.S. stock futures declined as investors weighed the potential market impact of Democratic gains in the 2026 midterm elections, including possible restrictions on data center development.

Futures tied to the S&P 500 fell 1.1%, while Nasdaq-100 futures dropped 2%. Dow Jones Industrial Average futures declined 367 points, or 0.7%, Sean Conlon and Lee Ying Shan reported for CNBC.

A sizable Democratic victory in the Senate, alongside a potential House majority, could affect the market outlook, particularly for companies involved in the expansion of artificial intelligence infrastructure, according to some Wall Street analysts.

Investors are concerned that a Democratic-led Congress could increase scrutiny of data centers and impose additional restrictions on their development. AI-related stocks have already retreated in recent weeks amid concerns about the pace of spending on data center infrastructure.