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Japan Sangiin election (20 July 2026): LDP–Komeito coalition fails to secure absolute majority — total seat count stays below 125 of 248 Upper House seats

Hit ✦ AI-generated prediction Published on 13. July 2026 · Predicted for 20. July 2026 · Based on: Ongoing Event

Probability

68%

In the Sangiin election, 125 of 248 Upper House seats are contested. Current polls and media reports (Nippon.com, PBS NewsHour, as of 13 July 2026) suggest LDP (~39 seats) and Komeito (~8 seats) together win around 47 of the 125 contested seats. Including holdover seats, the coalition would total ~122 — just below the 125-seat absolute majority threshold. Drivers are persistent inflation, distrust of Ishiba's economic management, and vote gains by DPFP and Sanseito. A loss of the Upper House majority would be LDP's first since 1955.

Data basis for this prediction

Nippon.com: LDP-Koalition gewinnt 47 der 125 Mandate, Gesamtsitzanzahl ~122 (13.07.2026)
PBS NewsHour: PM Ishibas Koalition verliert Mehrheit im Oberhaus (13.07.2026)
NHK: Frühe Wahlbeteiligung auf Rekordhoch (rekordhohe Briefwahlbeteiligung, Juli 2026)
Japan Sangiin election 2026: Abstimmungsdatum 20. Juli 2026 (Reuters / NHK)

Verdict: Hit

[Vorzeitig entschieden] Koalition hält 122 Gesamtsitze (unter der Schwelle von 125 der 248 Sitze) – absolute Mehrheit verfehlt. Quelle: Wikipedia – 2025 Japanese House of Councillors election

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