Ferdinand Marcos Jr., popularly known as "Bongbong", announced his candidacy for the 2022 presidential election in a five-minute long Facebook video, urging Filipinos to "join me in this noblest of causes and we will succeed."
"Unifying leadership ... can lead us through this crisis, get our people safely back to work, for all of us to begin to live our lives once again," the 64-year-old Marcos Jr. said.
Marcos Jr. ran for vice president in the 2016 election but lost narrowly to incumbent Leni Robredo. He has also served as a congressman representing Ilocos Norte, and held the governor and vice governor posts in the province -- the Marcos dynasty's traditional power base.
His announcement on Tuesday coincided with him assuming the chairmanship of Partido Federal ng Pilipinas party, according to his camp, CNN Philippines reported.
Marcos Jr. has yet to say when he will file his certificate of candidacy ahead of Friday's deadline.
Under the Philippines constitution, the President is limited to a single six-year term.
Along with Marcos Jr., boxing star Manny Pacquiao, Manila Mayor Francisco Domagoso, and Sen. Panfilo "Ping" Lacson have said they will stand to replace Duterte.