Speaker of the United States House of Representatives by the President "pro tempore" of the Senate and by the heads of federal executive departments. To date, the implementation of the Presidential Succession Act has never been necessary and no Speaker has ever acted as President. Implementation of the law almost became necessary in 1973 after the resignation of Vice President Spiro Agnew. At the time, many believed that President Richard Nixon would resign because of the Watergate scandal, allowing Speaker Carl Albert to succeed to the Presidency. However, before he resigned, Nixon appointed Gerald Ford as Vice President in accordance with the Twenty-fifth Amendment. Nevertheless, the United States
Vice President of the United States the legislative branch has contracted; for example, he presides over the Senate only infrequently. The Constitution does not expressly assign the vice presidency to any one branch, causing a dispute among scholars about which branch of government the office belongs to: 1) the executive branch; 2) the legislative branch; 3) both; or 4) neither. The modern view of the vice president as an officer of the executive branch (isolated almost totally from the legislative branch) is due in large part to the assignment of executive authority to the vice president by either the president or Congress. Mike Pence of Indiana