Japan’s prime minister, Shigeru Ishiba, has decided to step down, NHK reported on Sunday, saying he will make a formal resignation statement at a 6pm press conference that day ahead of a ruling Liberal Democratic Party (LDP) leadership vote scheduled for Monday, a move intended to avoid a party split and clear the way for a new leader.
Key Takeaways
- NHK reported that Prime Minister Shigeru Ishiba plans to resign, with a press briefing expected at 6pm on Sunday.
- The resignation comes before an LDP leadership election on Monday, where a majority of parliamentarians were expected to move to replace him.
- Ishiba has faced mounting pressure after the LDP lost control of the upper house in July and suffered a poor lower house result last October.
- Ishiba became party leader in October 2024 and has served roughly a year as prime minister, continuing a pattern of short-lived administrations.
- Potential successors named by political sources include Sanae Takaichi and Shinjiro Koizumi.
- The LDP’s internal rifts reflect wider political challenges: inflation, demographic decline and shifting voter preferences among younger citizens.
Verified Facts
Japan’s public broadcaster NHK reported that Mr. Ishiba planned to resign and would deliver a formal statement at a press conference at 6pm on Sunday, September 7, 2025. The report said the decision was made ahead of an LDP leadership election set for Monday, when party lawmakers were expected to pursue a change of leader.
Ishiba’s position weakened after the LDP lost its outright majority in the upper house in July 2025. That setback followed elections in October 2024 that left the party without a lower-house majority — an outcome widely described in domestic reporting as a major political miscalculation by the prime minister.
Mr. Ishiba first won the party leadership in October 2024 and has since seen support ebb among key LDP factions and some of his closest allies. Despite some improvement in national approval polls, several senior MPs privately and publicly urged the party to identify new leadership over the weekend, according to reporting by the Financial Times and other outlets.
| Date | Event |
|---|---|
| Oct 2024 | Ishiba wins LDP leadership, becomes prime minister |
| Oct 2024 (later) | Lower house election leaves LDP without majority |
| July 2025 | LDP loses outright control of the upper house |
| Sep 7, 2025 | NHK reports Ishiba will resign; press conference at 6pm |
Context & Impact
The LDP has governed Japan almost continuously since 1955, but recent electoral setbacks have exposed significant factional tension between its moderate and conservative wings. Those internal divisions have intensified as lawmakers debate policy responses to persistent inflation, an aging population and security concerns in a more contested regional environment.
Ishiba’s resignation would trigger an internal party leadership contest that could reshape the LDP’s policy direction and Japan’s short-term governance. Candidates mentioned by multiple sources include Sanae Takaichi, who narrowly lost to Ishiba in last year’s party race, and Shinjiro Koizumi, a high-profile younger lawmaker recently appointed as farm minister.
Implications to watch:
- Policy shift risk: A new LDP leader could reprioritize economic or security measures, affecting inflation strategy and defence posture.
- Parliamentary dynamics: If the LDP selects a new leader quickly, it may ease immediate instability but governance in the Diet could remain fragile without a clear lower-house majority.
- Electoral consequences: Rising small, populist parties have been drawing younger voters away from the LDP, a trend that could accelerate if the party struggles to present coherent leadership.
Official Statements
NHK reported the decision and said a formal resignation statement would be given at a scheduled press conference.
NHK / Japanese media reports
Unconfirmed
- Whether Ishiba will remain as a caretaker prime minister until a successor is formally chosen.
- Which candidate will secure the party leadership or what coalition arrangements, if any, will follow the leadership vote.
- The exact balance of support among LDP factions at the Monday vote (reported by MPs but not formally published).
Bottom Line
NHK’s report that Shigeru Ishiba will resign marks a rapid pivot in Japanese politics weeks after the LDP suffered electoral losses that weakened his standing. The immediate consequence is an internal party contest that could alter the LDP’s direction and Japan’s short-term policy agenda; outcomes remain uncertain and will depend on the result of the leadership vote scheduled for Monday.