Shortly before the vote, Soyinka had vowed to give up his permanent US residency over a Trump victory to protest against the Republican billionaire's campaign promises to get tough on immigration.
"I have already done it, I have disengaged (from the United States). I have done what I said I would do," the 82-year-old told AFP on the sidelines of an education conference at the University of Johannesburg.
"I had a horror of what is to come with Trump... I threw away the (green) card, and I have relocated, and I'm back to where I have always been" meaning Nigeria.The prolific playwright, novelist and poet won the Nobel Prize for Literature in 1986 and has been a regular teacher at US universities including Harvard, Cornell and Yale.