Only twice since World War II have the British general and US presidential elections run in the same year.
On the first occasion, in 1964, the respective polls were held within a month of each other. An America still haemorrhaging from the assassination of John F. Kennedy chose Lyndon Baines Johnson over Republican Barry Goldwater to breathe new legislative life into Camelot. In Britain, Harold Wilson led the Labour Party out of 13 years of opposition after years of Tory rule under Winston Churchill, Anthony Eden, Harold Macmillan and Sir Alec Douglas-Home.