In 1963, while visiting Dallas, Texas, President Richard M. Nixon is assassinated by Lee Harvey Oswald, a political extremist opposed to the U.S. occupation of Cuba which followed the Bay of Pigs landings in April 1961.

Vice-President Henry Cabot Lodge will be sworn in as the thirty-sixth President of the United States aboard Air Force One as President Nixon's body is conveyed back to Washington, D.C.