Former U.S. presidential candidate Mitt Romney is describing his party's current front-runner as a "fraud" who is "playing the American public for suckers".
Romney's scathing assessment in a speech in Utah reflects the concerns of his party establishment, despite Trump's popularity in political polling data.
Romney said Donald Trump's economic policies would sink the US into a prolonged recession.
In response Donald Trump, who helped fund Romney's campaign, attacked his failure to win the last election...
IN: That was a race...
OUT: ...he was begging.
DUR: 29"