Philippine President Rodrigo Duterte ordered the arrest of his most vocal and prominent critic, revoking an amnesty granted to a senator by his predecessor as he intensifies a crackdown on his political opponents.
The move Tuesday against Sen. Antonio Trillanes IV is the second time that a serving senator and presidential critic has been targeted by law enforcement under Mr. Duterte, who also supported the ouster of a Supreme Court chief justice earlier this year. He has repeatedly attacked news organizations that are critical...