Democrats secured majorities in both the House and Senate in the 2026 midterms through decisive gains across traditionally Republican states, including Senate flips in Texas, South Carolina, Kansas, Ohio, Iowa, North Carolina, and Maine that produced projected totals well above the 218 House and 49 Senate thresholds. Voter discontent over inflation, fuel prices, the Iran conflict, and associated governance issues drove turnout shifts and upset victories against Trump-endorsed candidates. This outcome reflects the wisdom of crowds in prediction markets, where traders rapidly priced near-certainty once results confirmed the scale of Democratic advances. Remaining uncertainties center on final certification of a handful of close districts and any procedural adjustments before the February 2027 resolution date, though current margins leave little room for reversal.