He also took an oath as a member of the Partido Federal ng Pilipinas, the political party he would be representing in the election. The party founded by his father, the New Society Movement, also recently endorsed him as a candidate.
Ferdinand Marcos ruled the country with an iron fist for two decades. He was defeated by a popular uprising in 1986 and went into exile in Hawaii, where he died three years later. He was accused of stealing up to $10 billion from state coffers and leaving thousands of activists dead or missing.
His widow, Imelda R. Marcos, and children were later allowed to return to the Philippines, where they worked to rehabilitate the family name. Mrs. Marcos was found guilty of corruption in 2018, but has eluded jail time.
Mr. Duterte, who announced his retirement last week, often publicly thanked the Marcos family for backing his candidacy in the 2016 presidential election. Just months into office, he allowed the dictator’s remains to be transferred to a national cemetery in Manila.
Judy Taguiwalo, an activist with the Campaign Against the Return of the Marcoses and Martial Law, said the announcement from Mr. Marcos was a “brazen show of disregard and contempt for the thousands of Filipinos killed, disappeared, tortured, displaced and violated” during his father’s brutal regime.