2017 Kibō no Tō leadership election
10 November 2017
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The 2017 Kibō no Tō leadership election was held on 10 November 2017 to select a co-leader who would lead the party aloneside founder Yuriko Koike. Yuichiro Tamaki easily defeated Hiroshi Ogushi for the position. Four days after the election, Koike resigned as leader, leaving Tamaki as sole leader of the party.