A plan to merge Japan’s centrist opposition parties has effectively collapsed following a decision by Komeito-affiliated lawmakers within the Centrist Reform Alliance (CRA) to reject the merger, shortly after the Constitutional Democratic Party of Japan (CDP) also withdrew from merger talks. The three parties’ leaders met on Monday evening to discuss future cooperation, but no agreement to unify was reached.
Junya Ogawa, head of the CRA, signaled a continued commitment to centrist politics despite the failed consolidation effort. He proposed establishing a new framework to rebuild and expand centrist forces independently, underscoring the alliance’s intention to remain active in opposition politics.
The CRA convened an emergency meeting Monday morning to consider whether its Komeito-affiliated members should split from the alliance altogether. Such a move could effectively dismantle the opposition bloc formed ahead of February’s Lower House election. The CDP had already announced on Friday that it would not pursue the merger after facing strong resistance from its lawmakers and local organizations. Instead, the party plans to rebuild its structure while maintaining policy and electoral cooperation with others. Komeito leader Toshiko Takeya expressed regret over the CDP’s decision.
Komeito executives met online on Sunday with former party members now aligned with the CRA—including former land minister Tetsuo Saito and CRA policy chief Mitsunari Okamoto—to authorize their party leadership to finalize the stance on whether to remain in the alliance or depart.
Options currently under consideration include formally splitting the CRA to allow former Komeito lawmakers to form a new political entity or having these members depart individually. Of the CRA’s 49 Lower House lawmakers, 28 were originally elected through Komeito and the proportional representation system. While individual departures would be simpler and leave assets with the CRA, a formal split would involve dividing government subsidies and other party assets. The latter scenario would also affect the CRA’s status as the largest opposition party in the Lower House, potentially lowering it to parity with the Democratic Party for the People.
The alliance was unexpectedly created in January just before the Lower House election, as CDP and Komeito aimed to present a united front against the ruling coalition. However, the parties maintained separate Upper House organizations, and merger discussions stalled due to differences over security legislation, energy policy, and the U.S. Marine base relocation in Okinawa Prefecture. Broader disagreements over organizational matters and local branches further complicated efforts.
CDP Secretary-General Masayo Tanabu previously criticized the proposed Lower House merger as an “ambition without principles,” expressing concern that the public had yet to fully appreciate its significance. The alliance suffered a significant setback in February’s election, dropping from a combined total of 167 Lower House seats to just 49.
The parties agreed in April to coordinate ahead of next year’s local elections, a position the CDP has reaffirmed, but the collapse of the merger and Komeito’s refusal to join a unified parliamentary caucus have left the future of opposition collaboration uncertain. Recent opinion polls reflect weak support for the centrist bloc; a Nikkei and TV Tokyo survey published Sunday showed the CDP polling at 5%, with the CRA and Komeito each at 2%.