Overview

• The LDP-Komeito alliance won the most seats in the 248-member chamber but fell short of the 125 needed for a majority, threatening to stall its policy agenda.
• Sanseitō’s unexpected haul of 10 seats grants it the power to introduce bills without budget proposals, making it a pivotal force in legislative negotiations.
• Komeito failed to secure any district seats for the first time since 2007, marking its worst performance in 18 years and reflecting voter discontent with the coalition.
• The Constitutional Democratic Party met its seat targets to remain the main opposition but faces a fragmented upper house that could limit its influence on government policy.
• The Japan Innovation Party retained its existing seats and ruled out joining the ruling bloc, forcing the coalition to seek ad hoc support from smaller parties.