Vice President of the United States (President of the Senate) : Information on the VP from the Senate Web site, “Constitutional origins of and structural changes in the office, its duties, and biographies of all vice presidents. A note in Gerald Ford’s entry explains “the Twenty-fifth Amendment to the U.S. Constitution in 1967, allowing for the appointment and confirmation of a new vice president” if a vacancy should occur.” (from Librarians Index to the Internet)