The Group of 20 summit in South Africa is set to end Sunday with another diplomatic spat involving the United States after the host country refused to hand over the rotating presidency of the bloc to what it described as a junior U.S. official.
The U.S. boycotted the two-day meeting of leaders from rich and emerging economies in Johannesburg over the Trump administration's claims that South Africa is violently persecuting its Afrikaner white minority.
