Japan's minority government faces a tough test in the upper house election

Japan’s Prime Minister Shigeru Ishiba faces a tough test in an upper house election this month as his minority government struggles after its major defeat in last year’s snap election
Leaders of eight political parties, from left to right, Komeito Chief Representative Tetsuo Saito, Constitutional Democratic Party of Japan leader Yoshihiko Noda, Japan's Prime Minister and Liberal Democratic Party leader Shigeru Ishiba, Japan Innovation Party Co-Representative Hirofumi Yoshimura and Democratic Party For the People Representative Yuichiro Tamaki pose before a debate at the Japan National Press Club in Tokyo, Japan, Wednesday, July 2, 2025. (Tomohiro Ohsumi/Pool Photo via AP)

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Leaders of eight political parties, from left to right, Komeito Chief Representative Tetsuo Saito, Constitutional Democratic Party of Japan leader Yoshihiko Noda, Japan's Prime Minister and Liberal Democratic Party leader Shigeru Ishiba, Japan Innovation Party Co-Representative Hirofumi Yoshimura and Democratic Party For the People Representative Yuichiro Tamaki pose before a debate at the Japan National Press Club in Tokyo, Japan, Wednesday, July 2, 2025. (Tomohiro Ohsumi/Pool Photo via AP)

TOKYO (AP) — Japan's Prime Minister Shigeru Ishiba faces a tough test in an upper house election later this month as his minority government struggles after its major defeat in last year's snap election.

Ishiba has survived so far, though he had to make some concessions to the opposition — an unusual step for the Liberal Democratic Party that has dominated Japan's postwar politics.

Official campaigning begins Thursday for the July 20 vote for the upper house, the less powerful of Japan’s two parliamentary chambers.

Ishiba has modest goals for the election and the opposition is divided, so the outcome is unlikely to force an immediate change of government. But it will be a tough test on Ishiba's handling of economic woes at home and global challenges such as U.S. President Donald Trump's tariff war.

“I will defend Japan’s national interest at all cost,” Ishiba said Wednesday, reiterating his determination to not make any concession on safety or other areas in the tariff negotiations despite Trump’s new threat. “Japan has its own national interest and I will do my utmost to protect it.”

Ishiba sets a modest goal: a majority

Ishiba’s goal is a simple majority. Half of the 248 seats for six-year terms in the upper house are being decided, and the LDP and its junior coalition partner Komeito would need to win 50 combined. That's on top of their 75 seats that are not being contested in this election.

That would be a retreat from their current number of 141 seats. “It won't be easy. But in this difficult situation, it is a must-attain goal," Ishiba said Wednesday, without saying how he would take responsibility if he doesn't meet his goal.

A poor result in the upper house election would not immediately cause a change of government but could trigger a LDP leadership change or regrouping of a governing coalition.

Fractured opposition

The LDP was defeated in the previous election largely because many of its usual supporters voted for centrist to conservative opposition groups to punish the governing party over its corruption scandals. The main opposition Constitutional Democratic Party of Japan, or CDPJ, and the surging Democratic Party for the People, or DPP, as well as an emerging right-wing populist Sanseito have significantly gained ground.

But the opposition groups are too fractured to find a common platform to gain voter support as a viable alternative.

When Ishiba lost big in October, there was speculation of a trilateral coalition government with the DPP or another conservative Japan Innovation Party, but they have cooperated only on certain legislation. A loss of majority in the upper house by Ishiba’s party could reignite momentum for coalition regroupings.

Opposition CDPJ leader Yoshihiko Noda has said a loss of majority in both houses would help opposition parties to push policies blocked by the LDP, such as consumption tax cuts.

Rice, price woes and Trump

Measures to mitigate soaring prices, dwindling wages and burdens of social security payment are the top focus of frustrated voters hit by economic woes.

Ishiba's handling of the recent rice panic will be tested. Rice prices have doubled since last year due to supply shortages, complex distribution systems and other reasons related to Japan's farming policies, adding to consumer concern and frustration.

The rice crisis cost Ishiba's government one farm minister, but the replacement, Shinjiro Koizumi, took rapid and bold measures including the unprecedented release of emergency reserves that brought the staple back to normal prices, just in time for the election.

In another setback, Trump complained about little progress in trade negotiations with Ishiba's government, saying Japan is not only not buying automobiles, but is also not buying enough U.S. rice despite its rice shortage.

While NATO leaders recently adopted a massive hike in defense spending after pressure from Trump, Ishiba said Japan should make its own decision on any such spending.

Ishiba’s party adopted a campaign platform that included cash payouts to cushion the impact of inflation and dwindling wages, which opposition parties criticized as pork. The main opposition CDPJ calls for increased welfare spending, while DPP focuses on wage increase.

Ishiba also needs to offset consumer worries over uncertainty in the Middle East and its impact on energy costs.

Japan's Prime Minister and president of the Liberal Democratic Party (LDP) Shigeru Ishiba speaks during a convention held by Reiwa Rincho group in Tokyo, June 29, 2025.(Kyodo News via AP)

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Tetsuo Saito, chief representative of the Komeito speaks during a convention held by Reiwa Rincho group in Tokyo, on June 29, 2025.(Kyodo News via AP)

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Yuichiro Tamaki, leader of Democratic Party for the People, speaks during a convention held by Reiwa Rincho in Tokyo, June 29, 2025.(Kyodo News via AP)

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Leaders of eight political parties, from left to right, Komeito Chief Representative Tetsuo Saito, Constitutional Democratic Party of Japan leader Yoshihiko Noda, Japan's Prime Minister and Liberal Democratic Party leader Shigeru Ishiba, Japan Innovation Party Co-Representative Hirofumi Yoshimura and Democratic Party For the People Representative Yuichiro Tamaki pose before a debate at the Japan National Press Club in Tokyo, Japan, on July 2, 2025. (Tomohiro Ohsumi/Pool Photo via AP)

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Credit: AP