Portrait of Taro Aso
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Taro Aso on Liberal Democratic Party (LDP)

Key LDP power broker (strong)

TL;DR

Taro Aso is a deeply entrenched and influential power broker within the Liberal Democratic Party, frequently shaping its leadership and policy direction.

Key Points

  • He served as Prime Minister of Japan from September 24, 2008, to September 16, 2009, leading the LDP to its worst election result in history a year later.

  • He held the dual roles of Deputy Prime Minister and Minister of Finance concurrently from December 26, 2012, to October 4, 2021, under successive prime ministers.

  • Following the 2025 House of Councillors election loss, he stated, "I will not approve of Ishiba continuing," influencing the subsequent LDP presidential election.

Summary

Taro Aso is a highly influential figure within the Liberal Democratic Party (LDP), leveraging his background as a former Prime Minister and his leadership of the powerful Aso faction to shape party affairs. He was appointed Vice President of the LDP under Fumio Kishida after leaving his ministerial roles, and later became Senior Advisor to the party. His continued seniority, evidenced by key faction members securing high-ranking positions like Vice President and Secretary-General after a recent LDP presidential election, solidifies his role as a definitive power broker. He has historically commanded strong support among the party's conservative base and has been directly involved in strategic maneuvers to influence the outcome of LDP presidential contests, such as issuing instructions to his faction members.

His involvement with the LDP extends through decades of service, including holding major cabinet posts such as Minister of Finance and Deputy Prime Minister under different administrations. Even after his own brief tenure as Prime Minister ended in 2009 with a historic LDP defeat, Aso demonstrated significant political resilience by returning to key governmental and party positions. This ability to navigate setbacks and maintain influence—by commanding loyalty within his faction and engaging in behind-the-scenes maneuvering—is central to his lasting impact on the LDP’s trajectory and leadership selection.

Key Quotes

"We have to put in place a system that can win the House of Representatives election."

Frequently Asked Questions

Taro Aso currently holds the senior position of Senior Advisor to the LDP. Following the LDP presidential election in late 2025, members of his faction secured key roles, cementing his continued behind-the-scenes influence. He had previously served as Vice President of the LDP after leaving his cabinet positions.

Yes, Taro Aso was elected President of the Liberal Democratic Party on September 22, 2008. He became Prime Minister of Japan shortly after this election. He resigned as LDP President after the party suffered a major defeat in the August 2009 general election.

His primary influence stems from leading the Aso faction, which has historically been one of the largest and most powerful factions within the LDP. This provides him with significant leverage in internal party negotiations and leadership selection processes. His family background in politics and business further solidifies his standing among the party elite.