Title: United States - The executive branch | Britannica
Headings: 
The executive branch
The legislative branch
Know how the United States elects the offices of the House of Representatives, the Senate, the president, and the vice president unlike the United Kingdom
The judicial branch

Content: cabinet-level rank may be conferred to the heads of such institutions at the discretion of the president. Members of the cabinet and presidential aides serve at the pleasure of the president and may be dismissed by him at any time. Bush, George W.; National Security Council
U.S. Pres. George W. Bush meeting with the National Security Council in the Cabinet Room of the White House, September 12, 2001. Courtesy of the George W. Bush Presidential Library & Museum/NARA
The executive branch also includes independent regulatory agencies such as the Federal Reserve System and the Securities and Exchange Commission. Governed by commissions appointed by the president and confirmed by the Senate (commissioners may not be removed by the president), these agencies protect the public interest by enforcing rules and resolving disputes over federal regulations. Also part of the executive branch are government corporations (e.g., the Tennessee Valley Authority, the National Railroad Passenger Corporation [ Amtrak ], and the U.S. Postal Service), which supply services to consumers that could be provided by private corporations, and independent executive agencies (e.g., the Central Intelligence Agency, the National Science Foundation, and the National Aeronautics and Space Administration ), which comprise the remainder of the federal government. The legislative branch
Know how the United States elects the offices of the House of Representatives, the Senate, the president, and the vice president unlike the United Kingdom
Learn how the United States elects the offices of the House of Representatives, the Senate, the president, and the vice president in the 21st century and how this system compares to that of other countries, such as the United Kingdom. © UK Parliament Education Service ( A Britannica Publishing Partner) See all videos for this article
The U.S. Congress, the legislative branch of the federal government, consists of two houses: