Florida governor Ron DeSantis has suffered a "polling CRASH like no other", according to his friend-turned-rival Donald Trump. Once considered Trump's major challenger, DeSantis has hit headlines for all the wrong reasons since announcing his bid for presidency earlier this year. But have the wheels fallen off his campaign for good? 

Read on for all you need to know about the man Trump calls "Ron DeSanctimonious."

All dollar amounts in US dollars.