Keizō Obuchi
In the LDP, Takaichi belonged to the Mori Faction (formally, the ) and she served as a Parliamentary Vice Minister for the Ministry of International Trade and Industry under Keizō Obuchi cabinet. She also served as chairman of Education and Science Committee. In 2000, House of Representatives election she was placed in the first position in proportional representation ballot from LDP and easily won her third term. In 2002 she was appointed as the Senior Vice Minister of the Ministry of Economy, Trade and Industry under Junichiro Koizumi.