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🏛️ Politics · Next Year

US Midterms November 3, 2026: Democratic Party wins US Senate majority (net at least 51 of 100 seats, confirmed by AP or NBC News by November 5, 2026)

Hit ✦ AI-generated prediction Published on 12. September 2026 · Predicted for 3. November 2026 · Based on: Historical Cycle
Probability
52%

Polymarket sees 53% for Democrats (Senate control, as of September 7, 2026), Kalshi 47.5% (September 2026), Nate Silver/Silver Bulletin 56.6% (as of September 11, 2026). Calibrated anchor: ~52%. Republicans currently hold 53 Senate seats; Democrats need a net gain of 4 seats. 23 Republican seats (Class 3, last elected 2020) are up for election. Key races: Maine (Collins, R, vulnerable), North Carolina (open seat), Ohio (special election, competitive), Alaska (Peltola, D). Midterm losses for the ruling party (Republicans/Trump), high inflation and Iran war costs strengthen Democratic momentum narrative. Defensive risks for Democrats: Georgia (Ossoff, narrow 2020 win) and Michigan (Peters retiring).

Data basis for this prediction
  • Polymarket: 53% für Demokraten (Senate Control), Midterms 2026 (Stand 07.09.2026, polymarket.com)
  • Kalshi: 47,5% für Demokraten (Senate Control) (Stand September 2026, per CNBC 01.05.2026)
  • Nate Silver / Silver Bulletin: 56,6% für Demokraten (Senats-Mehrheit), Modell-Update 11.09.2026 (natesilver.net)
  • Cook Political Report / 270toWin: 9-10 kompetitive Battleground-Senatsrennen 2026, u.a. ME, NC, OH, AK, GA, MI (Stand September 2026)
Verdict: Hit
Die Vorhersage ist klar eingetreten. Bei den US-Midterms am 3. November 2026 gewannen die Demokraten die Mehrheit im Senat. Laut AP und NBC News (beide bestätigten das Ergebnis am Wahltag bzw. 4. November 2026) flippten die Demokraten 7 republikanische Sitze und halten nun 54 von 100 Sitzen – deutlich über der vorhergesagten Mindestmarke von 51. Schlüsselsiege gelangen in Texas (erstmals seit 1988 demokratisch), Kansas (erstmals seit 1932), South Carolina, Iowa, Ohio, Maine und North Carolina. Quellen: NBC News (https://www.nbcnews.com/politics/2026-elections/senate-results), AP via Spectrum News (https://spectrumlocalnews.com/us/snplus/politics/2026/11/03/balance-of-power-congress-2026-midterm-elections), CBS News (https://www.cbsnews.com/live-updates/senate-election-results-2026/).
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