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

South Africa’s President Cyril Ramaphosa will hold crucial talks at the White House with US President Donald Trump on Wednesday in a high-stakes meeting that could improve or deteriorate already frosty relations between the nations.

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.