Donald Trump put his South African counterpart Cyril Ramaphosa on the spot during his visit to the Oval Office this week with a list of claims about the deaths of white farmers - claims which Mr Ramaphosa countered and put into context.     On today's Sky News Daily, Niall Paterson is joined by Richard Calland, a British-South African political analyst and author of The Presidents, From Mandela to Ramaphosa, to discuss exactly who Mr Ramaphosa is and how he will lead his country when it's in the cross hairs of the Trump administration.      Producer: Jada-Kai Meosa John  Editor: Wendy Parker