Mugabe turns whos appointment

I think you meant to ask "Who turns Mugabe's appointment?"

Robert Mugabe, the former President of Zimbabwe, was ousted from power in 2017 after a military coup. He was replaced by Emmerson Mnangagwa, who was previously the Vice President of Zimbabwe.

Mnangagwa was appointed as the new President of Zimbabwe by the Zimbabwean military, which had taken control of the government. He was sworn in as President on November 24, 2017.

So, to answer your question, Emmerson Mnangagwa was the one who turned Mugabe's appointment, by taking over as the new President of Zimbabwe after Mugabe's ousting.