An analysis of voter trends in both parties in the months leading up to the election has indicated a significant shift to Sanseito by those who once voted for the DPP.

Japan's ruling coalition, led by Prime Minister Shigeru Ishiba's Liberal Democratic Party (LDP), has suffered another setback in elections to the upper house of parliament, exit polls predicted on Sunday.

One opposition party in particular has grabbed a lot of attention in Japan's Upper House election-- Sanseito. Its catchphrase, "Japanese First", helped it grow from 2 seats... to 15. For more on why the party was able to make this leap, we asked NHK World's political correspondent Kikuyama Kengo for details.

The listless performance of established parties such as the Liberal Democratic Party and Komeito in Sunday’s Upper House election has confirmed the relentless decline of a long-time fixture of Japanese politics — voting blocs.

Takahiro Anno, leader of the political group Team Mirai, is set to secure his first victory in the July 20 House of Councillors proportional ･･･

Voting has begun for Japan's House of Councillors election. All eyes on whether the ruling coalition will be able to retain its majority amid growing public frustration with rising prices and support for emerging parties,