In announcing his resignation on Monday to the City Council, Mr. Duterte cited the social media fight, as well as his failed marriage to Lovelie Sangkola, the teenager’s mother, and recent accusations tying him to a crime ring.
“There are recent unfortunate events in my life that are closely tied to my failed first marriage,” including “the very public squabble with my daughter,” he said.
“The other person in this failed relationship is incorrigible and cannot be controlled,” he said, in an apparent reference to his daughter.
The resignation is a blow to the reputation of a family that dominates Davao politics and that has used its governance of the city as a springboard to running the country.
Paolo Duterte’s sister, Inday Sara Duterte, is Davao’s mayor. On Sunday she, the president and Paolo Duterte visited the site of a shopping mall fire, in which at least 37 people were believed to have been killed.
Noting the timing of his resignation and the fire, Mr. Duterte told the City Council, “It is a difficult Christmas Day,” adding, “but we are strong and resilient and we shall move forward.”
He recently appeared before a Philippine Senate panel to deny an opposition lawmaker’s accusations that he was connected to a Chinese gang involved in drug running.
In response to those allegations, President Duterte said he would have his son killed if they turned out to be true.
“I told Pulong, ‘My order is to kill you if you are caught,’ ” the president said, using his son’s nickname. “ ‘And I will protect the police who kill you, if it is true.’ ”