U.S. presidential candidate Hillary Rodham Clinton took swipes at Wall Street and her Republican rivals on Monday, promising to impose tougher regulations on banks and raise the wages of ordinary Americans if she wins the 2016 White House race.

Under pressure from a campaign rival on the left, Clinton said she would appoint strict overseers to ensure that financial institutions never again indulge in the risky behavior that helped cause the 2008 banking crash.

In an address that her campaign promoted as a major economic policy speech, the former secretary of state vowed that banks cannot be "too big to fail."