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Tokyo 10th district |
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Turnout | 34.85 | ||||||||||||||||||||
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Yuriko Koike
Liberal Democratic
Masaru Wakasa
Liberal Democratic
A by-election for the Tokyo 10th district in the Japanese Japanese House of Representatives was held on 23 October 2016 to replace Yuriko Koike, who vacated the seat to contest the Tokyo gubernatorial election in July 2016. Koike, a member of the Liberal Democratic Party (LDP), had represented the district since the December 2012 general election and also served a previous term from 2005-2009. The election was won by LDP candidate Masaru Wakasa , an incumbent member for the Tokyo proportional representation block who had supported Koike during her gubernatorial campaign. A separate by-election for the Fukuoka 6th district was held on the same day.
Yuriko Koike, a Kansai native who had represented various Kansai districts in the House of Representatives since 1993, was parachuted into the Tokyo 10th district by LDP Prime Minister Junichiro Koizumi for the 2005 general election following the defection of Koki Kobayashi , who had held the seat for the LDP since its creation in 1996. Koike defeated Kobayashi in the 2005 election but lost to Democratic Party of Japan (DPJ) candidate Takako Ebata in 2009. Koike regained the seat from Ebata at the 2012 election and retained it at the 2014 general election.