Campaigning for vacant House of Councillors seats started Thursday in Nagano and Hiroshima prefectures, with the outcomes likely to affect Prime Minister Yoshihide Suga's leadership and his plan to call a general election that must be held by fall.
A by-election for the Upper House district in Nagano Prefecture and a do-over election for the constituency in Hiroshima Prefecture — both scheduled for April 25 — will be the first national polls since Suga took office in September last year.
The two contests will effectively be vied between candidates of the ruling coalition of Suga's Liberal Democratic Party and its ally Komeito, and those backed by opposition parties.
Political analysts view the polls as a prelude to a general election Suga could call before the expiration of his term on Sept. 30 as the LDP president and hence the prime minister. The four-year term of House of Representatives members will expire on Oct. 21.
If the ruling coalition performs worse than expected in either by-election, Suga's position at the head of the LDP could come into question.
Another by-election for a single-seat district of the Lower House in Hokkaido will also be held on April 25, with campaigning starting next Tuesday.
The Hokkaido race will be contested among opposition-backed candidates after the LDP gave up on fielding a candidate.
With scandals involving then-LDP lawmakers prompting two of the elections, the main opposition Constitutional Democratic Party of Japan is seeking to make them the focus of the campaigns.
The LDP, for its part, hopes to defend its ground in Hiroshima, known as a conservative stronghold.
The Nagano election is being held as incumbent Yuichiro Hata, a CDP lawmaker who served as land minister, died in December after being infected with the novel coronavirus.
LDP candidate Yutaka Komatsu, backed by Komeito party, is running against CDP candidate Jiro Hata, the younger brother of Yuichiro Hata, who is also backed by other opposition parties including the Japanese Communist Party.
"It's been three months since my brother passed away. I want to succeed his will and bring the unheard voices of the people to national politics," said Hata.
Komatsu, meanwhile, called for support in the battle against the virus, saying he would serve as a bridge between the medical community and the central government.
The do-over election in Hiroshima comes as Anri Kawai, the wife of former Justice Minister Katsuyuki Kawai, lost her seat after a court found her guilty of vote-buying in the 2019 Upper House election and her election win was nullified.
LDP candidate Hidenori Nishita, a former trade ministry official, is facing Haruko Miyaguchi, backed by the CDP, the Democratic Party for the People and the Social Democratic Party.
The Hokkaido by-election was called as former farm minister Takamori Yoshikawa resigned as a lawmaker after being indicted over receiving bribes from a representative of an egg producer.
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