FDP fails the 5% threshold and does not enter the Berlin House of Representatives (Berlin state election, September 20, 2026, confirmed by the Berlin Returning Officer or tagesschau.de by September 21, 2026)
Pending
✦ AI-generated prediction
Published on 6. September 2026
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Predicted for 20. September 2026
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Based on: Historical Cycle
All available Berlin polls consistently show the FDP at 3.5% — well below the 5% threshold. Ipsos, the Tagesspiegel election trend, and dawum.de (early September 2026) confirm this figure uniformly. BSW also polls at ~3.8% and is likewise expected to fail. The calibration history is a warning: in the Saxony-Anhalt election (September 6, 2026) the FDP surprisingly achieved 6.4% and cleared the threshold (prediction miss). However, in Berlin there is no upward trend; moreover, the Berlin electorate is structurally less FDP-friendly than that of Saxony-Anhalt. Independent calibration yields approximately 88% probability of failing the threshold.
Data basis for this prediction
- Tagesspiegel/dawum.de Wahltrend Berlin: FDP 3,5 %, BSW 3,8 % (aktuell Anfang Sep 2026)
- Ipsos Berlin-Umfrage: FDP 3,5 %, kein Aufwärtstrend in den letzten 4 Wochen (ipsos.com/de-de, Sep 2026)
- Kalibrierungshistorie: SA-FDP überraschend 6,4 % → Scheitern-Prognose war Miss (bpb.de, 6. Sep 2026)
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.