Japanese Prime Minister Shigeru Ishiba said Monday he will stay in office to tackle challenges such as rising prices and high U.S. tariffs after a weekend election defeat left his coalition with a minority in both parliamentary chambers and triggered calls for his resignation.

Shigeru Ishiba’s ruling Liberal Democratic Party and its junior coalition partner Komeito were short three seats to maintain a majority in Japan's 248-seat upper house in Sunday’s vote. The emerging populist party Sanseitō stands out with the toughest anti-foreigner stance,

The embattled prime minister said he would remain in office to oversee tariff talks with the United States and other pressing matters.