1956 Presidential Election
Macarthur decided not to seek a third term as he could as he was not bound the terms of the 22nd amendment. His Vice-President John Bricker was choosen as the Republican nominee and he choose California Senator Richard Nixon as his running mate.
The Democrats saw Texas Senator Lyndon Baines Johnson win the nomination from the floor defeating Adlai Stevenson, Estes Kefauver, and Hubert Humphrey for the nomination. Johnson chose Humphrey as his running-mate despite them both being sitting Senators.
The election had three sitting Senators running for national office (Nixon, Johnson & Humphrey) along with Bricker who had also been a Senator.
The election turned out to be one of the closest in American history, with Bricker winning by 268 electoral votes to Johnson's 263, and Bricker carried the popular vote by just 0.20%.
Bricker & Nixon 268 electoral Votes
Johnson & Humphrey 263 electoral votes
*266 electoral votes required to win
Notes
This election was worked out using a combination of the real 1956 & 1960 figures. The electoral map is very close to that of the real 1960 election, although not a replica of it.