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Ishiba’s Coalition Loses Upper House Majority, Governs as Minority in Both Chambers

High inflation driven by a doubling of rice prices alongside looming U.S. tariffs has undermined public trust in Ishiba’s LDP-Komeito government.

Le Premier ministre japonais Shigeru Ishiba s'exprime devant la presse dans les locaux du Parti libéral-démocrate (PLD, droite conservatrice) après avoir perdu la majorité à la chambre haute du Parlement aux élections, le 20 juillet 2025 à Tokyo
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Rising rice prices will be a feature of upper house elections on Sunday
Le Premier ministre japonais Shigeru Ishiba , le 2 juillet 2025 à Tokyo

Overview

  • The LDP-Komeito coalition won only 41 of 125 contested seats on July 20, falling nine seats short of the 50 needed to retain its upper-house majority.
  • For the first time since World War II, Japan will be governed by a minority in both chambers, raising the prospect of legislative gridlock on key policies.
  • The right-wing populist Sanseito party expanded its representation from two seats to 16, signaling voter discontent over immigration and economic management.
  • Analysts warn Prime Minister Shigeru Ishiba’s tenure is in jeopardy, with growing calls for his resignation if the coalition cannot secure a working majority.
  • Inflation hit 3.3% in June, fueled by a doubling of rice prices, prompting housing and energy subsidies and planned 20,000-yen handouts that have yet to ease cost pressures.