Portrait of Taro Aso
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Taro Aso on Shigeru Ishiba

Vocal opponent (strong)

TL;DR

Taro Aso forcefully called for Prime Minister Shigeru Ishiba's resignation after the ruling party suffered significant electoral defeats.

Key Points

  • Taro Aso publicly called for Ishiba's resignation immediately after the LDP's poor performance in the July 2025 Upper House election.

  • As the head of his faction, Aso was instrumental in generating internal party pressure that led to procedures for an early LDP leadership vote.

  • During a meeting on July 23, Aso confronted Ishiba, stating that the LDP under Ishiba could no longer win elections.

Summary

Taro Aso, a conservative heavyweight within the Liberal Democratic Party (LDP) and a former prime minister, became a vocal opponent of Shigeru Ishiba following the party's historic losses in the July 2025 House of Councillors election. Immediately after the defeat, Aso publicly called for Ishiba's resignation, a demand that helped trigger a cascade of similar calls from other senior party members. His faction, the only one formally left in the party, worked to ensure an early presidential vote that would effectively cut short Ishiba’s term.

This move demonstrated a consolidation of power by Aso, who reportedly viewed Ishiba's leadership as incapable of winning future elections for the LDP. At a crucial meeting with other former prime ministers, Aso explicitly stated that Ishiba's LDP could no longer secure electoral victories, underscoring the political pressure that ultimately forced Ishiba to announce his resignation before a formal no-confidence measure could take place.

Frequently Asked Questions

Taro Aso forcefully called for Shigeru Ishiba to resign immediately after the Liberal Democratic Party suffered major losses in the July 2025 election. He was among the senior figures escalating demands for an early leadership vote to replace Ishiba. Aso made it clear he would not approve of Ishiba continuing as leader.

While Aso's opposition to Ishiba became strong and public following the 2025 election defeats, their relationship has a history of friction. There was prior resentment, as Ishiba had previously pressured Aso to step down during his own time in office. Aso was visibly unhappy when Ishiba won the LDP leadership in 2024.

The pressure exerted by Taro Aso and others was a primary trigger for Prime Minister Ishiba's subsequent resignation announcement. Aso's faction actively worked to facilitate an early party leadership contest. This action effectively sealed Ishiba's fate, compelling him to step down before the party formally moved to remove him.