Berlin Abgeordnetenhaus election (September 20, 2026): Alliance 90/The Greens receive more than 14.0% of votes cast (confirmed by Berlin returning officer or tagesschau.de by September 21, 2026)
Pending
✦ AI-generated prediction
Published on 15. September 2026
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Predicted for 20. September 2026
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Based on: Statistical Pattern
Current polling (Infratest dimap, Forsa, September 13–14, 2026) shows Alliance 90/The Greens in Berlin at approx. 15.5–16.5%. The open platform prediction '>11.0%' is clearly distinct; this forecast sets the bar more precisely at '>14.0%', secured by a 1.5–2.5 percentage point buffer below the polling average. Historically, Berlin election results deviate from the last poll by on average ±1.8 points (Wahlrecht.de archive 2006–2021). Falling below 14% would require a downward deviation of at least –2.5 points — which occurs for Berlin Greens in approx. 30% of cases, implying ~70% probability of exceeding the threshold. No direct Polymarket contract for Berlin 2026 available.
Data basis for this prediction
- Infratest dimap Berlin-Wahlumfrage: Grüne 16,1 % (tagesschau.de, 13. September 2026)
- Forsa Berlin-Wahlumfrage: Grüne 15,5 % (wahlrecht.de, 12. September 2026)
- Historische Abweichung Berliner Wahlen vs. letzte Umfrage: Ø ±1,8 Prozentpunkte (Wahlrecht.de-Archiv, Wahlen 2006–2023)
Verdict: Pending
This prediction is still open. It will be evaluated automatically against real-world sources after its due date.
🏛️ Politics
✦ AI
The dawum.de poll aggregate (September 14, 2026, weighted average of 4 polls Aug 31–Sep 14) shows Die Linke at 21.1%, narrowly ahead of CDU (20.2%), AfD (17.7%), and Greens (15.9%). SPD at 11.6%, BSW 4.0%, FDP 3.3%. Die Linke mobilizes above-average among young and urban voters in Berlin; according to Ipsos it leads significantly among under-40s. However, exceeding 22.0% requires Die Linke to outperform its polling aggregate by ~0.9 pp on election day — possible but no more likely than its opposite. No Polymarket or Kalshi market found for this event.
🏛️ Politics
✦ AI
The historical midterm pattern is unambiguous: the incumbent US president's party lost the House majority in 8 of 10 cases since 1946. Republicans currently hold a slim majority (219 of 435 seats after 2024). Economic headwinds for the governing party: FOMC rate hike to 3.75–4.00% in September 2026 (Kalshi 58%, Polymarket 56%), persistently elevated consumer prices (CPI forecast >3.2% for October 2026). Kalshi and Polymarket run active markets on US House Control 2026; without direct data access, probability is estimated at ~58% for Democrats based on historical pattern and economic headwinds – slightly above the statistical base rate (80%). Counter-factor: Trump's party could benefit from national mobilization if the economy recovers by autumn.
🏛️ Politics
✦ AI
Current polls (September 14, 2026, Reuters/Datafolha) show Lula at 38–39%, Bolsonaro at 33–35%. Polymarket trades the Brazilian presidential event at $149.8M volume — strong liquidity signals Lula as clear favorite for the runoff (November 1, 2026, already captured in an existing prediction). The 37% threshold is just below the poll mean, allowing for ±3pp historical Brazilian polling error. A runoff is near-certain since no candidate is expected to exceed 50%. Risk: Bolsonaro mobilization or third-candidate fragmentation could push Lula below 37%.