| July 2024 | Re-elected to a third term as Governor of Tokyo |
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| July 2020 | Re-elected to a second term as Governor of Tokyo |
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| July 2016 | Elected Governor of Tokyo |
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| October 2011 | Director, Committee on Budget, House of Representatives |
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| September 2010 | Chairperson, General Council, Liberal Democratic Party |
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| July 2007 | Minister of Defense |
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| September 2006 | Special Advisor to the Prime Minister for National Security Affairs |
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| September 2004 | Minister of the Environment and Minister of State for Okinawa and Northern Territories Affairs |
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| September 2003 | Minister of the Environment |
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| July 1993 | Member of the House of Representatives |
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| July 1992 | Member of the House of Councillors |
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