Berlin state election (September 20, 2026): BSW (Bündnis Sahra Wagenknecht) fails to clear the 5% threshold and does not enter the Abgeordnetenhaus (confirmed by Landeswahlleiter Berlin or tagesschau.de by September 21, 2026)
Pending
✦ AI-generated prediction
Published on 4. September 2026
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Predicted for 20. September 2026
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Based on: Statistical Pattern
BSW polls at just 3.4% per politpro.eu aggregate (as of September 2, 2026) in Berlin — around 1.6 percentage points below the 5% threshold. No recent Berlin poll shows BSW exceeding 4%. Given stable polling underperformance and typical Berlin polling tolerance (±1.5pp, 4 weeks before the election), entry into the Abgeordnetenhaus is very unlikely. No Polymarket market for Berlin-BSW available.
Data basis for this prediction
- politpro.eu Berlin Wahltrend 2. Sep 2026: BSW 3,4 % (politpro.eu/de/berlin)
- Dawum.de Berlin Sonntagsfrage Aggregat: BSW stabil 3–4 % (alle Umfragen Sep 2026)
- Wikipedia: '2026 Berlin state election' — BSW in allen jüngsten Umfragen unter 4 %
- Historische Berliner Umfragetoleranz letzte 4 Wochen vor Wahl: ±1,5 pp (2021/2023)
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.