JD Vance leads a high-level US delegation to Islamabad to stabilize a fragile ceasefire following weeks of intense conflict between the US and Iran.The diplomatic team includes Steve Witkoff and Jared Kushner as they navigate regional tensions involving Israeli operations in Lebanon and demands from Iranian leaders.This pivotal role for Vance follows internal administration debates and highlights his shift from war skeptic to primary negotiator ahead of the 2028 election.