MANILA, Philippines — Malacañang and the House prosecutors in the impeachment trial of Vice President Sara Duterte challenged her defense lawyers to prove the existence of “Operation

National Bureau of Investigation Cyber Investigation Senior Agent John Mark Calilung takes the stand at the Senate plenary hall during Day 2 of the historic impeachment trial…

Senior NBI agent John Mark Calilung testifies at Sara Duterte's impeachment trial on Tuesday. (Photo from Senate PRIB) MANILA, Philippines — The defense counsel of Vice…