Sen. Elizabeth Warren
Sen. Elizabeth Warren.
  • Senator Elizabeth Warren said First Republic's takeover made the "too big to fail" problem worse.
  • The regional lender was seized by the FDIC and sold to JPMorgan on Monday. 
  • "A poorly supervised bank was snapped up by an even bigger bank—ultimately taxpayers will be on the hook."

Senator Elizabeth Warren warned the collapse of First Republic Bank will cost American taxpayers and said the year's third US bank shutdown highlights the need for a regulatory overhaul.