Key Facts
• On September 8, three lawmakers submitted resignation letters citing dissatisfaction with party management.
• The lawmakers are Masashi Morishima, Takeshi Saiki, and Hiroki Abe.
• On September 17, the Japan Innovation Party decided to expel them effective immediately.
• Party Secretary-General Hiroshi Nakatsukasa stated the decision was due to actions damaging party honor.
• Reasons include repeated criticism of party leadership while retaining membership.
• The lawmakers also allegedly encouraged other members to resign.
• The party plans to demand their resignation from parliamentary positions.
Summary
The Japan Innovation Party expelled three lawmakers-Masashi Morishima, Takeshi Saiki, and Hiroki Abe-on September 17, 2025, following their submission of resignation letters earlier in the month. The decision, announced by Secretary-General Hiroshi Nakatsukasa, cited actions that harmed the party’s reputation and disrupted its discipline. Specific reasons included their continued criticism of party leadership while maintaining membership and attempts to persuade other members to resign. The party intends to push for their resignation from parliamentary roles.
