The Office of Management and Budget (OMB) is a U.S. government agency that assists the President in overseeing the federal budget. It plays a crucial role in coordinating the administration's financial and policy priorities, ensuring that government spending aligns with the President's goals. OMB also evaluates the effectiveness of federal programs and policies, providing guidance to various agencies. By analyzing budget proposals and performance data, it helps improve efficiency and accountability in government operations, ultimately aiming to enhance public service delivery.