MANILA, PHILIPPINES - MAY 08: People pepare boxes for voting at city hall on May 8, 2016 in Manila, Philippines. Opinion polls have shown Mr Duterte, a tough-talking mayor of Davao in Mindanao, has maintained a clear lead in the Philippines as Senator Grace Poe looks at impossible odds. The Philippine presidential campaign ended on May 7 with elections slated for May 9 and features 5 presidential candidates vying for the top post.  (Photo by Lam Yik Fei/Getty Images)