By John Geddie and Tim Kelly TOKYO (Reuters) -Japanese Premier Shigeru Ishiba vowed to remain in his post on Monday after his ruling coalition suffered a bruising defeat in upper house elections, prompting some in his own party to doubt his leadership as the opposition weighed a no-confidence motion.

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.

President Donald Trump on Sunday escalated his call for the Washington Commanders to change their name back to the “Redskins,” threatening to restrict the NFL team’s stadium deal if they don’t, though it’s unclear how he would be able to.

Japanese Prime Minister Shigeru Ishiba’s ruling coalition has lost its majority in the upper house of parliament.

Japanese Prime Minister Shigeru Ishiba on Monday stressed the need to establish a common understanding among parties on the pros and cons of cutting the country's sales tax rate.

Good morning. Shigeru Ishiba says he’ll stay put—despite a historic election setback. Some investors worry that disappointing earnings or economic data may derail the S&P 500’s red-hot rally. And Astronomer CEO Andy Byron steps down after the now-infamous Coldplay concert incident.

Japanese Prime Minister Shigeru Ishiba’s job, and vital trade talks with the U.S., are at stake in national elections that take place this Sunday.

The yen climbed across the board on Monday after beleaguered Japanese Prime Minister Shigeru Ishiba vowed to hang on as leader even though his ruling coalitionlost its majority in Sunday's upper house elections,