Japan’s Prime Minister Shigeru Ishiba addresses the media at the vote counting center in the Liberal Democratic Party headquarters in Tokyo on July 20, 2025.

Japan’s embattled Prime Minister Shigeru Ishiba could resign by August, according to local media.

The reports came shortly after U.S. President Donald Trump announced that he had reached a “massive Deal” with Japan, and days after Ishiba’s governing coalition lost its majority in the country’s upper house.

Japan’s Mainichi newspaper reported Wednesday that the prime minister intended to announce his resignation by August, according to a Google translation of the report in Japanese.

Japanese media outlet Yoimuri had reported earlier in the day that Ishiba would decide whether to stay on as prime minister after assessing the progress of tariff negotiations.

Japan’s Jiji Press reported that “he would soon decide whether to step down or not,” adding that a senior member of Ishiba’s Liberal Democratic Party predicted that Ishiba would step down in August.

The Sankei newspaper, likewise, said that he would make the final decision on his future in August, and added that if he decides to step down, Ishiba would be expected to select a new party leader in September and hold an election for the nominee in October.

Some reports, such as the Nikkei newspaper’s, revealed that Ishiba will on Wednesday be in an “unusual” meeting with LDP Chief Advisor Taro Aso, Vice President Yoshihide Suga, and former Prime Minister Fumio Kishida.

Nikkei also said that Ishiba “will discuss his future with the former prime minister.”

With the upper house loss, this is the first time that the LDP is a minority in both houses. The party lost its majority in the lower house last October.

Ishiba himself has not made any public remarks on his future, only saying after the election that he would stay on as prime minister.