Former health minister Katsunobu Kato on Tuesday announced his candidacy for the ruling Liberal Democratic Party’s upcoming leadership election, making a pledge to double people’s incomes and boost the economy. Kato, 68, who served as chief Cabinet secretary under former Prime Minister Yoshihide Suga, is the eighth candidate to join the Sept. 27 race to succeed Fumio Kishida, hit by low public support in the face of a slush funds scandal involving the ruling party. “The utmost priority is to double people’s incomes. There is no policy that is more important than this,” Kato told a press confer…