Berlin State Parliament Election (September 20, 2026): Voter turnout exceeds 66.5% of eligible voters (confirmed by Berlin returning officer or tagesschau.de by September 21, 2026)
Hit
✦ AI-generated prediction
Published on 18. September 2026
·
Predicted for 20. September 2026
·
Based on: Statistical Pattern
The 2023 Berlin re-run election achieved only 63.0% turnout; 2016 registered 66.9%. The 2021 figure of 75.7% was exceptional as it coincided with the Bundestagswahl. For 2026 — a standalone election — the relevant benchmarks are 2023 and 2016. Multiple parties (FDP, BSW) are fighting close to the 5% threshold, which historically drives additional voter mobilisation. A threshold of 66.5% implies a slight uptick vs 2016 and a clear rebound from 2023. No direct prediction market available. Own calibration: 58%.
Data basis for this prediction
- Wahlbeteiligung Berlin 2023 (Wiederholungswahl): 63,0 % (Landeswahlleiter Berlin)
- Wahlbeteiligung Berlin 2021: 75,7 % — Sondereffekt Bundestagswahl (BPB, Wikipedia)
- Wahlbeteiligung Berlin 2016: 66,9 % (Statistisches Amt Berlin-Brandenburg)
- Cassandra-Prognosen aktiv: FDP <5 % und BSW <5 % — beide innerhalb der Hürde (Mobilisierungseffekt)
Verdict: Hit
Die Wahlbeteiligung bei der Abgeordnetenhauswahl Berlin am 20. September 2026 lag laut offiziellen Ergebnissen (wahlen-berlin.de, Wikipedia, politpro.eu) bei 74,2 % – und damit deutlich über dem Schwellenwert von 66,5 %. Die hohe Mobilisierung ist offenbar auf das überraschend starke Abschneiden der Linken (25,7 %) und eine polarisierte Wählerschaft zurückzuführen. Die Vorhersage ist klar eingetreten.
🏛️ Politics
✦ AI
Democrats won both chambers historically at the November 3, 2026 midterms (Senate 54:44, House 258 seats — largest majority since 1993). Trump's disapproval rating stands at 62% (FiveThirtyEight, Nov 2026). Based on documented behavioral pattern: after the 2020 presidential election, Trump posted voter fraud claims within 48 hours; after the 2022 midterms, challenges followed within a week. Metaculus community places >70% probability on public contesting after major GOP losses. A public statement via Truth Social, press release, or confirmed media interview by November 15, 2026 counts as verification (Reuters or AP).
🏛️ Politics
✦ AI
Ukrainian, US, and Russian negotiators convene November 10–11 in Abu Dhabi. Russia conducted large-scale long-range strikes on Ukrainian energy infrastructure and logistics hubs on November 3–4; Ukraine responded with drone strikes on the Ryazan refinery. Positions on territory and security guarantees remain far apart. No Polymarket or Kalshi market covers this specific event; historical base rate for failure of comparable trilateral talks: >80%.
🏛️ Politics
✦ AI
Spain holds a general election on 29 November 2026. Polymarket prices Feijóo as next PM at 85%, Kalshi at 82% — both serve as anchors. A separate Polymarket market gives PP+Vox a 92% probability of a joint majority (>176/350 seats). Current polls (Sondaxe) show PP at 29.2% narrowly ahead of PSOE (26.9%); Vox is tracking slightly higher. Feijóo failed to form a government in 2023, but market odds reflect the lesson learned: PP+Vox is now seen as stable enough. No deviation from market anchor warranted.