"福岡６区補選 蔵内氏、辞退要請を拒否 自民党本部、鳩山氏一本化狙う" (in Japanese). Mainichi Shimbun. 25 August 2016. Retrieved 6 December 2017. "自民二階派に鳩山二郎氏入会 第３派閥まであと１人" (in Japanese)...