November 4 — U.S. stock index futures moved lower as the market increasingly bets that Democrats are poised to capture a majority of congressional seats and several key governorships in the 2026 U.S. midterm elections. S&P 500 futures fell 1.1%, Nasdaq 100 futures dropped 2%, and Dow Jones Industrial Average futures slipped 0.7%. Kalshi data shows the odds of Democrats controlling the Senate have climbed above 90%, signaling that traders are increasingly wagering on a decisive Democratic victory. Some on Wall Street believe that if Democrats secure a larger Senate advantage, the market could come under pressure — particularly stocks tied to artificial intelligence infrastructure buildouts. In after-hours trading, Microsoft, Amazon, and Nvidia all declined; high-risk data center play CoreWeave fell 6% in overnight trading on Robinhood; Musk's SpaceX dropped 4% on the Robinhood platform.