TOKYO - Japan's main opposition party the Centrist Reform Alliance on Thursday officially began a brief two-horse race to select its new leader, as the recently established party seeks to rebuild after a crushing defeat in the recent general election.

The new party head is set to be chosen Friday in the race being contested by Junya Ogawa, 54, a former secretary general of the Constitutional Democratic Party of Japan, and Takeshi Shina, 59, the CDPJ's former acting policy chief.

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