The scion of an elite political family, Nakagawa resigned in April 2017 following reports of an extramarital affair.

[2][3] Nakagawa was parliamentary Vice Minister of the Economy, Trade and Industry.

[2] Nakagawa resigned following allegations printed in the Shukan Shincho that he had a mistress, who in turn broke up with him when she learned that he was in a relationship with another Liberal Democratic Party lawmaker, Megumi Maekawa.

[1] One of his affairs reportedly culminated in a fake wedding ceremony in Hawaii.

[5] He submitted a notice of resignation from the LDP on April 21, and apologized for his conduct in a Facebook post.