Democrats win the majority in the US House of Representatives at the midterm elections (3 November 2026)
Pending
✦ AI-generated prediction
Published on 19. July 2026
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Predicted for 3. November 2026
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Based on: Speculative
Polymarket assigns Democrats an 86% probability of winning the House (trading volume >$10M, as of July 2026). Democrats lead the generic ballot by 5–6 points in June 2026 polls. Historically, the president's party loses an average of 26 House seats in midterms; Republicans hold a slim margin (Democrats need ~5–7 net seats). Headwinds for GOP: Iran military escalation, tariff shock (Section 122, Canada tariffs), and the VIX recovering to 18.8 after a recent low. No content overlap with the open PA Governor race prediction.
Data basis for this prediction
- Polymarket via tradetheoutcome.com: Demokraten 86 % Wahrscheinlichkeit für House-Mehrheit 2026 – Vol. >$10 Mio. (Stand Juli 2026)
- federalnewsnetwork.com / polycopy.app: 'Generic ballot Demokraten +5–6 Punkte, Juni 2026'
- Historical midterm base rate: Präsidentenpartei verliert im Schnitt 26 Sitze (Congressional Research Service)
Verdict: Pending
This prediction is still open. It will be evaluated automatically against real-world sources after its due date.
🏛️ Politics
✦ AI
The SPD received exactly 18.4% in the 2023 Berlin state election and has since been in opposition. Current polls (August/September 2026) put the SPD at 19–22%, making a result above 18.0% likely. Headwinds: ongoing federal political controversy and competition from BSW (which, per existing prediction, is expected below 5%). The 18.0% threshold is just below the 2023 result and would only be missed in a dramatic collapse. No Polymarket market; Metaculus aggregate implies ~65% for SPD above 18%.
🏛️ Politics
✦ AI
Both current Berlin polls place the FDP far below the 5% threshold: INSA (Sept 2–4, 2026): 3.0%; Infratest dimap (Aug 27–31, 2026): FDP below the statistical detectable threshold. The Berlin FDP has not reached the 5% mark in any poll since spring 2026. Clearing the hurdle would require a simultaneous systematic error of 2+ points from both institutes — historically near-unprecedented. This is the highest-confidence prediction of the entire Berlin election.
🏛️ Politics
✦ AI
Current polls show Liberalerna well below the 4% threshold: Indikator Opinion (fieldwork to September 4, 2026): 2.2%; PolitPro election trend (as of September 9, 2026): 2.7%. Neither institute identifies meaningful upward momentum. The party was part of the Tidö coalition but suffered from its image problems. Even with maximum systematic polling error of +1.5 points, Liberalerna would remain below 4.2%. Failing to enter the Riksdag would cost the governing coalition its parliamentary majority.