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 United States is on trial, the Constitution requires that the Chief Justice of the United States must preside. This stipulation was designed to avoid the possible conflict of interest in having the vice president preside over the trial for the removal of the one official standing between him and the presidency. Curiously, the framers made no mention of who would preside in the instance where the vice president is the officer impeached; thus leaving a loophole whereby a vice president, as President of the Senate, could preside at their own impeachment trial. The Twelfth Amendment, like the superseded Article II