Philippine Presidential Candidates Campaign On Labour Day

MANILA, PHILIPPINES - MAY 01: Rodrigo Duterte and his supporters onboard a truck during a campaign motorcade on May 1, 2016 in Manila, Philippines. Presidential Candidate Rodrigo Duterte, a tough-talking mayor of Davao in Mindanao has been the surprise pre-election poll favourite, pulling away from his rivals despite controversial speeches and little national government experience. Opinion polls have shown Mr Duterte has maintained his lead with 33 percent support in the Philippines as Senator Grace Poe looks at an impossible odd, with only 22 percent supporting her. The Philippine presidential campaign ends on May 7 with elections on May 9 and features 5 presidential candidates vying for the top post. (Photo by Jes Aznar/Getty Images)