On August 21, 1983, Marcos' chief rival, opposition leader Benigno Aquino Jr., was assassinated on the tarmac at Manila International Airport. Marcos called a snap presidential election in 1986. Marcos was proclaimed the winner, but the results were widely regarded as fraudulent. The resulting protests led to the People Power Revolution, which forced Marcos and his allies to flee to Hawaii, and Aquino's widow, Corazon Aquino, was installed as president.