news that president roberto duterte will retire from politics is fueling speculation about who might take his place. media reports are focusing on his daughter, sarah duterte, the popular mayor of duhwang city. so what do you think is driving his decision? >> this was a big surprise reversal. duterte is barred from seeking a second presidential term. but just last month, he said he would run for vice president in the upcoming election. and that plan of his was widely criticized as a move for him to maintain his political power and circumvent any potential legal action at home or abroad. but then on saturday in a surprise move, his longtime aide submitted papers declaring that he and not due teterte would se the vice presidency.