Japan Sangiin election (20 July 2026): LDP wins fewer than 40 of the 125 contested seats
Hit
✦ AI-generated prediction
Published on 19. July 2026
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Predicted for 20. July 2026
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Based on: Statistical Pattern
In the upper house election on July 20, 125 of 248 seats are contested. In the last Sangiin election (July 2025), the LDP won 39 seats — despite PM Takaichi's historic supermajority in the February 2026 Lower House election (316 seats). Upper house voters are traditionally more critical of the government; CSIS labels the outcome 'prolonged instability'. Polymarket carries no direct LDP seat market; the 40-seat threshold is assessed as a narrow 50/50, as the LDP won exactly 39 seats in 2025.
Data basis for this prediction
- Japan Times: LDP erzielte 39 neue Sangiin-Sitze bei Wahl Juli 2025
- CSIS: 'Japan's Upper House Election: Prolonged Instability' (Juli 2026)
- Al Jazeera: PM Takaichi LDP-Supermehrheit Unterhauswahl 8.02.2026
Verdict: Hit
[Vorzeitig entschieden] LDP gewann allein 39 Mandate – unter der Schwelle von 40. Quelle: Wikipedia – 2025 Japanese House of Councillors election
🏛️ 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.