Japan's Prime Minister Fumio Kishida has vowed to continue where his ex-boss, the late Shinzo Abe, left off. And he just got the parliamentary majority he needs to get big things done — including, perhaps, tweaking the constitution like Abe long dreamed of.

"Kishida now [has a] golden opportunity," Tomohiko Taniguchi, Abe's former adviser and close friend, tells Ian Bremmer on GZERO World.