Class of 2022: The Tokushima-Kochi at-large district (徳島県・高知県選挙区, Tokushima-ken-Kōchi-ken senkyoku) is a constituency of the House of Councillors in the Diet of Japan (national legislature).

A June 2016 survey, conducted two weeks prior to the first election in the new district, found that three quarters of respondents in each prefecture opposed the merger.

[8] In June 2016 it was reported that Hirota would instead contest one of Kochi Prefecture's districts at the next House of Representatives election, to be held by the end of 2018.

[15] Of the 592,092 voters to cast a vote in the district, 157,550 (26.6%) attended pre-polling booths in the two-week period before the July 10 election date.

[18][19] On top of the poor turnout, 6.15% of those who turned out cast an invalid vote, compared to 3.55% in 2013,[20] and nine voters left the polling booth without submitting their ballot.

[14] Iizumi also called upon Nakanishi to become a flag bearer for regional revitalization, as it was the decline in population throughout rural Japan which led to the merger of the smaller districts.

[21] The number of people enrolled to vote in Tokushima-Kōchi on the day of the election was 1,279,900, an increase of 18,800 (1.5%) compared to the annual survey conducted ten months earlier.