As the most powerful executive branch with the authority to manage the executive branch's federal budget, the utilizes central clearance and is known as the agency that says "no."

The office of management and budget under the Council of Economic Advisers

Explanation:

The Council of Economic Advisers (CEA) was created in 1946 to provide the president with information on economic policy. It is best known for predicting national economic trends.

The enormously complex task of preparing the federal budget for submission to Congress falls to the Office of Management and Budget (OMB). Originally established in the Treasury Department as the Bureau of the Budget, the OMB has had its powers expanded considerably since 1970. It is involved in drafting the president's legislative program and evaluating how effectively federal agencies use their appropriations.