Nouveau parti du Japon
Koizumi maintained, as he pledged before calling the election, a position that he would not give official party endorsement to 37 members of his party who voted against the postal bills; that is, the 37 were not allowed to run as members of the party. To compensate for the disadvantages that non-party members suffer under the current election law, four LDP rebels including Shizuka Kamei announced on 17 August their formation of a new party, the People's New Party, to contest the elections. Four other LDP rebels followed suit days after, forming New Party Japan (not to be confused with the Japan New Party of Morihiro Hosokawa) with a popular Nagano governor Yasuo Tanaka as head. However, most rebels have not joined the new parties, preferring to run as independents so as not to sever their ties with local LDP organizations.