Executive Orders are issued by United States Presidents and directed towards officers and agencies of the U.S. federal government. Executive orders have the full force of law, based on the authority d
erived from statute or the Constitution itself. The ability to make such orders is also based on express or implied Acts of Congress that delegate to the President some degree of discretionary power (delegated legislation). Like both legislative statutes and regulations promulgated by government agencies, executive orders are subject to judicial review and may be overturned if the orders lack support by statute or the Constitution. Major policy initiatives require approval by the legislative branch, but executive orders have significant influence over the internal affairs of government, deciding how and to what degree legislation will be enforced, dealing with emergencies, waging wars, and in general fine-tuning policy choices in the implementation of broad statutes.