For more than a decade, Japanese political stability has been synonymous with the staying power of the Liberal Democratic Party.

Since Shinzo Abe¡¯s return to the prime ministership in 2012, the LDP has consistently won elections and enjoyed relatively consistent public support.

Those foundations are now crumbling, as Prime Minister Shigeru Ishiba faces a leadership crisis and calls to step down following the historic Upper House election defeat in July.