Philippine voters head to the polls on Monday (May 9) in a presidential election shaping up as a rematch between the son and namesake of the country's late dictator and the human rights lawyer who narrowly beat him in the 2016 vice presidential contest.

Opinion polls in the days ahead of the vote showed Ferdinand "Bongbong" Marcos Jr comfortably ahead of his rivals, giving him a real chance at turning the tables on Vice President Leni Robredo, who is running second in the polls.

"It is very seldom that elections are really...