MANILA -- President Rodrigo Duterte's son on Tuesday joined a crowded race to become the speaker of the Philippines' parliament, in a move that could cement his family's grip on power.
Davao City Congressman Paolo Duterte is one of three siblings in politics

Davao's Vice Mayor Paolo Duterte and son of President Rodrigo Duterte takes an oath as he testifies at a Senate hearing on drug smuggling in Pasay, Metro Manila on September 7, 2017 © Reuters
MANILA -- President Rodrigo Duterte's son on Tuesday joined a crowded race to become the speaker of the Philippines' parliament, in a move that could cement his family's grip on power.