Politics Japan's ruling party to hold September 14 leadership vote; four possible candidates for PM Updated : August 31, 2020 12:21 PM IST In the race to succeed Abe as the next prime minister, former Defence Minister Shigeru Ishiba is the most popular choice among the public, media opinion polls showed. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.