A native of Sakai and graduate of Kyoto University Faculty of Law, Nishimura was elected to the Diet for the first time in 1993 after an unsuccessful run the year prior.
Three other members of his family have also been members of the House of Representatives: Affiliated to the openly revisionist lobby Nippon Kaigi,[1] Nishimura was a supporter of right-wing filmmaker Satoru Mizushima's 2007 revisionist film The Truth about Nanjing, which denied that the Nanjing Massacre ever occurred.
[2] Nishimura was among the members of the Nippon Kaigi council at the Diet who signed a full-page advertisement in The Washington Post following the US House Resolution on comfort women.
The ad denied Imperial Japan's sexual slavery system: "We must note that it is a gross and deliberate distortion of reality to contend that the Japanese army was guilty of 'coercing young women intro sexual slavery' in 'one of the largest cases of human trafficking in the 20th century'".
[3] In a statement defending mayor of Osaka Tōru Hashimoto in May 2013, Shingo Nishimura made the controversial claim that Japan is full of Korean prostitutes, a comment that led to his expulsion from the Japan Restoration Party.