Sworn on January 3, 2023, he directly oversaw management of the Department of the Navy’s (DON’s) annual budget exceeding $240 billion while leading, mentoring, and developing the DON’s community of over 9,200 financial managers. He spearheaded the DON’s financial management transformation, including the financial statement audit and modernization of financial systems. These efforts supported mission accomplishment for Fleet commands, Marine Expeditionary Forces and all naval forces within the Department.

Mr. Rumbaugh has previously worked on national security budgets in the Department of Defense, the U.S. Congress, and at think tanks. Mr. Rumbaugh served in the Office of the Secretary of Defense’s Cost Assessment and Program Evaluation office twice, on the Senate Budget Committee, and on personal staff in the House of Representatives.