DAVAO CITY , Philippines — Over three million Davao City voters will choose today between former president Rodrigo Duterte and lawyer Karlo Nograles to be the next mayor of this southern metropolis.

In the southern Philippine city of Davao, a spirited mayoral election campaign is in full swing, with candidates and their supporters out canvassing for votes. But one of the leading contenders is ...

If the senior Duterte isn’t allowed to take the oath, experts say the role of mayor could fall to election runner-up Karlo Nograles, of the Nograles political dynasty, longtime Duterte rivals in Davao ...