Taking a dig at Vice President Leni Robredo and Senator Panfilo Lacson, Duterte advised the officials to take a look at the charter, which he said “provides that foreign relations or foreign policy is vested on the president alone.”

Robredo had said that Duterte’s earlier remarks seeking payment from the United States government for the continuation of the Visit Forces Agreement was akin to extortion.  Lacson also issued a similar statement on social media.

“Kinakabahan ako if by chance mag-president ka.. . .  If by unfortunate chance you become president, please study more, you need a refresher course in law,” Duterte said.

He also told Lacson to first consult a lawyer before making his social media posts.—LDF, GMA News