Senator Christopher "Bong" Go, closely supported by President Rodrigo Duterte as his favorite successor, Tuesday announced that he was withdrawing from the Philippines presidential race.

Go, who has been a senator since 2019 and is a close ally of Duterte, said he was not prepared to face the demanding electoral campaign, and his family did not believe that he should run for the presidency.

The senator said he did not want the 76-year-old president to participate in the campaign for fear of causing him excessive exhaustion due to his age.

Go first decided to run the presidential race in September, then chose to run for vice president, and finally ran for the presidency on Nov.13.

The sudden changes in strategy are due to the complicated political game of Duterte and his daughter Sara Duterte-Carpio, who have ended up in separate camps.