5人竞争执政党总裁，日本政治不确定性增加

Group 1 - The upcoming election for the president of Japan's ruling Liberal Democratic Party (LDP) will focus on five main candidates, with former Secretary-General Toshimitsu Motegi officially announcing his candidacy [1] - Current Chief Cabinet Secretary Yoshihide Suga, Minister of Agriculture, Forestry and Fisheries Yoshikazu Koizumi, former Minister for Economic Security Sanae Takaichi, and Takashi Kobayashi have also confirmed their intention to run, with formal announcements expected soon [1] - The election is set to take place on October 4, following the announcement of the election on September 22, after the resignation of current LDP president and Prime Minister Shigeru Ishiba [1] Group 2 - A recent poll indicates that Sanae Takaichi leads with a support rate of 28%, followed by Yoshikazu Koizumi at 22.5% and Yoshihide Suga at 11.4% [1] - Yoshihide Suga's position as a key cabinet member may hinder his ability to declare his candidacy early, as he is seen as a core supporter of the current Prime Minister [1] - The election will not only address rising prices but also the challenge of how the LDP and its coalition partner Komeito can cooperate with opposition parties in a minority government situation [2]