Nigerian Nobel Laureate, author and playwright Wole Soyinka has thrown away his green card in protest against Donald Trump's presidency. The Nigerian vowed to do so if Trump won the U.S. presidential polls. The 82-year-old scholar was the first African to win the Nobel Prize for literature in 1986. He's been living in America for for more than 20 years. Soyinka maintains Trump's presidency is a sign it's the right time for him to leave.