Ramaphosa enjoyed a brief wave of sympathy after his White House ambush but he is a problematic leader, writes Sizwe Mpofu Walsh.

Iranian and U.S. negotiators resumed talks on Friday in Rome to resolve a decades-long dispute over Iran's nuclear ambitions, Iranian media reported, despite Tehran warning that a new deal might not be possible amid mutually exclusive demands.

Ramaphosa, meanwhile, used the opportunity in Washington to stress that while South Africa continues to grapple with its complex history of racial inequality, the narrative of white genocide is not only false but dangerous.