Duterte nemesis and drug-war critic bids for Philippine president

"I will fight, we will fight," Robredo, 56, said, declaring herself a presidential candidate.

Philippines Vice President Leni Robredo, an arch-rival of President Rodrigo Duterte and staunch critic of his deadly drug war, said Thursday she will run for the top job, becoming the leading opposition candidate in a crowded election field.

Robredo has been under pressure from supporters and opposition groups to join the 2022 presidential race, but she has been well behind the front runners in opinion polls.

Analysts say the even-tempered former congresswoman could struggle.

"I will fight, we will fight," Robredo, 56, said, declaring herself a presidential candidate.