A formal collection of advisers to the president of the United States. Article II of the U.S. Constitution calls for executive-branch departments to be created by law when they might be needed. The heads of these departments and the vice president are all cabinet members. Under President George W. Bush, cabinet-level rank also has been accorded to the administrator of the Environmental Protection Agency, the director of the Office of Management and Budget, the director of National Drug Control Policy and the U.S. Trade Representative.