White House security aide Andy Baker exits, signaling shift in national security team

White House deputy national security adviser Andy Baker is departing in the coming weeks after an 18-month tenure that placed him at the center of foreign policy and Iran talks; Cliff Sims will replace him as Vice President Vance's national security adviser, with Mike Needham continuing as deputy. Baker, who planned to leave earlier but stayed to ensure an orderly transition, is expected to move into private-sector work alongside Robert O'Brien.