Japanese Prime Minister Shigeru Ishiba, under growing pressure to step down over the historic loss of his ruling party in a weekend election, says he will decide on whether to resign after closely studying the tariff deal just struck with the United States.

Japanese Prime Minister Shigeru Ishiba plans to step down following a bruising upper house election defeat, a source told Reuters, as the embattled premier announced a long-sought trade deal with U.S.

With the trade deal with the U.S. now done, Japanese Prime Minister Shigeru Ishiba is reportedly planning to step down. A Bloomberg report, citing the Yomiuri newspaper, stated that Ishiba is set to announce his resignation this month.