The Philippine Supreme Court has ordered President Ferdinand Marcos Jr. to comment on a petition concerning his health, raising questions about presidential fitness. This legal dispute is being amplified by supporters of former president Rodrigo Duterte.

Questions over Philippine President Ferdinand Marcos Jnr’s health, amplified by supporters of former president Rodrigo Duterte, have reached the Supreme Court, turning a dispute over presidential fitness into a rare test of constitutional disclosure. On Wednesday, the Supreme Court gave Marcos 10 days, or until early May, to comment on a petition regarding his state of health. The court was reacting to an “urgent petition” for a “writ of mandamus” filed by political allies and supporters of...