JPMorgan CEO Jamie Dimon attends an interview with Reuters in Detroit, Michigan, U.S., Nov. 5, 2025.

Emily Elconin | Reuters

JP Morgan may reconsider a planned multibillion-dollar office tower in London if U.K. Prime Minister Keir Starmer is ousted, the bank's CEO Jamie Dimon said on Wednesday.

Speaking to Bloomberg in Paris, the head of America's biggest bank said that while a change in leadership would not change JP Morgan's fundamental strategy, it could force the lender to rethink its future in the U.K. capital.

JP Morgan announced late last year that it would build a new three-million square foot tower in London's Canary Wharf financial district to house up to 12,000 employees and serve as its U.K. headquarters.…