Jamie Dimon
JPMorgan Chase CEO Jamie Dimon.
  • The US defaulting on its debt is "potentially catastrophic," JPMorgan Chase chief Jamie Dimon told Bloomberg on Thursday. 
  • A June 1 deadline is approaching for President Joe Biden and Republican leaders to raise the $31 trillion debt limit. 
  • "People should remember the American financial is the foundation to the global economic system," Dimon said. 

JPMorgan Chase CEO Jamie Dimon on Thursday warned of unprecedented economic harm if the US defaults on its debt amid a failure by lawmakers to raise the country's debt ceiling. 

A default "is potentially catastrophic," Dimon told Bloomberg TV in an interview at the bank's Global Markets Conference in Paris.