 He announced his candidacy for governor of Tokyo in 2014 in the election to replace resigning governor Naoki Inose.Although Tamogami obtained 610,865 votes, he lost to former Minister of Health, Labour and Welfare Yōichi Masuzoe, who obtained more than 2.1 million votes.In the 2014 general election he ran as a candidate for the Party for Future Generations but was not elected.