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Ishiba’s Coalition Falls Short in Upper House, Enters Minority Rule

The ruling bloc holds only 122 of 248 Diet seats after winning 41 of the 125 contested upper chamber seats.

Japan's Prime Minister Shigeru Ishiba attends a press conference at the headquarters of the Liberal Democratic Party (LDP) in Tokyo on July 21, 2025, the day after the prime minister's coalition lost its upper house majority.     PHILIP FONG/Pool via REUTERS     TPX IMAGES OF THE DAY
El primer ministro Shigeru Ishiba, en el bunker de su partido, tras las elecciones
Archivo - Shigeru Ishiba, primer ministro de Japón
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Overview

  • The LDP-Komeito coalition secured just 41 of the 125 upper house seats, missing the 50-seat majority threshold.
  • Its combined 122 seats leave the government without majorities in both chambers for the first time since World War II.
  • Prime Minister Shigeru Ishiba has declared his intention to stay in office despite the setback.
  • Right-wing populist Sanseito made notable gains, projected to hold up to 22 seats and strengthen nationalist voices in the Diet.
  • Japan faces a looming August 1 deadline to clinch a trade deal with Washington or face 25% US tariffs on key exports.