Mitt Romney railed on GOP presidential frontrunner Donald Trump in a major address Thursday, calling him a 'phony,' 'fraud,' 'con man,' and 'fake.' Listing many of Trump's previous businesses, like Trump Steaks, Trump Airlines, and the controversial Trump University, Romney said Trump wasn't a 'business genius.' 'Here's what I know: Donald Trump is a phony, a fraud,' Romney said. 'His promises are as worthless as a degree from Trump University,' he continued. 'He's playing the American public for suckers. He gets a free ride to the White House, and all we get is a lousy hat.'