Berlin State Parliament Election (September 20, 2026): Die Linke receives more than 25.0% of votes cast (confirmed by Berlin State Returning Officer or tagesschau.de by September 21, 2026)
Pending
✦ AI-generated prediction
Published on 13. September 2026
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Predicted for 20. September 2026
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Based on: Historical Cycle
Existing Cassandra predictions already confirm: Die Linke will be the strongest party in Berlin (more votes than CDU, itself projected above 16.5%). Infratest dimap polls (Berlin, August 2026) put Die Linke at 27–29%, Forsa at 26–28%. The 25% threshold sits at the lower bound of these estimates. Polymarket carries no specific market quote for Berlin detail values. Key risk: weak youth-voter mobilisation or fragmentation towards BSW/Greens could push Die Linke just below 25%.
Data basis for this prediction
- Infratest dimap Berlin-Wahlumfrage Aug 2026: Linke 28 % (Tagesspiegel, 28. August 2026)
- Forsa Berlin-Wahlumfrage Sept 2026: Linke 27 % (rbb24, 5. September 2026)
- INSA Berlin-Wahlumfrage Sept 2026: Linke 26 % (Berliner Morgenpost, 8. September 2026)
- Landeswahlleiter Berlin: Vorläufige Ergebnisse ab ca. 18:00 Uhr am 20. September 2026
Verdict: Pending
This prediction is still open. It will be evaluated automatically against real-world sources after its due date.
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✦ AI
Moderaterna under PM Ulf Kristersson polled 17.4–18.4% in final pre-election surveys: Infostat (September 1): 17.5%; Indikator Opinion (September 4): 18.4%; PolitPro aggregate: 17.4%. The 17.0% threshold is below all current estimates. No Cassandra duplicate: SD, S, C, V, L, KD and MP are covered — but not M. Typical ±1.5–2% polling error could push M slightly below the threshold, but stable conservative voter loyalty argues against it.
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✦ AI
Polymarket sees 53% for Democrats (Senate control, as of September 7, 2026), Kalshi 47.5% (September 2026), Nate Silver/Silver Bulletin 56.6% (as of September 11, 2026). Calibrated anchor: ~52%. Republicans currently hold 53 Senate seats; Democrats need a net gain of 4 seats. 23 Republican seats (Class 3, last elected 2020) are up for election. Key races: Maine (Collins, R, vulnerable), North Carolina (open seat), Ohio (special election, competitive), Alaska (Peltola, D). Midterm losses for the ruling party (Republicans/Trump), high inflation and Iran war costs strengthen Democratic momentum narrative. Defensive risks for Democrats: Georgia (Ossoff, narrow 2020 win) and Michigan (Peters retiring).
🏛️ Politics
✦ AI
Polymarket (as of 12 Sep 2026, ~$149M volume) shows a dead heat: Flávio Bolsonaro and Lula da Silva each at ~49%. A first-round win requires >50% of all valid votes. With two candidates this evenly matched, a first-round knockout is statistically near-impossible; third-candidate votes further depress both below the threshold. Open forecasts (Lula >46%, Bolsonaro >26%) are consistent with this scenario. Estimate: ~88%.