The White House office created by President Donald Trump four months ago to revitalize U.S. shipbuilding has been moved from the National Security Council to the Office of Management and Budget, according to a White House spokeswoman. The relocation follows wide-ranging staff cuts at both the NSC and the State Department after Marco Rubio, serving as interim national security advisor, began a broader reorganization. Ian Bennitt, the former congressional aide tapped to lead the shipbuilding office, disclosed late Wednesday that he is leaving government to join defense-technology start-up Mach Industries as vice president for governmental affairs. Bennitt’s departure comes weeks after former national security advisor Michael Waltz, who championed the office, left the NSC and was nominated as U.S. ambassador to the United Nations. Industry executives had welcomed Trump’s March announcement of a federal entity dedicated to shipbuilding, but the office’s dispersal of staff and shift to OMB raise questions about the administration’s maritime strategy. Separately, the Navy is weighing the elimination of up to five admiral-level positions critical to overseeing ship and fighter development, further clouding prospects for meeting the president’s goal of breaking what he has called a “shipbuilding crisis.”