Tokyo Gov. Yuriko Koike is leading the polls by a small margin in the Tokyo gubernatorial election that will take place on July 7, a Kyodo News survey showed Sunday.The incumbent 71-year-old Koike, who is seeking to secure her third four-year term, is effectively backed by the ruling bloc. She is closely followed by key challenger Renho, 56, a former upper house lawmaker supported by the main opposition.Among other candidates, Shinji Ishimaru, the 41-year-old former mayor of Akitakata in Hiroshima Prefecture, western Japan, has seen a strong surge in support, while former Air Self-Defense F…READ FULL ARTICLE