Cunningham contested
Henley at the
1966 general election as the Labour candidate.
Social Democratic Party In November 1981, Cunningham resigned from the Labour Party and sat as an independent Labour MP, before becoming one of the later ex-Labour defectors to the recently founded
Social Democratic Party in June 1982. Cunningham lost his seat by just 363 votes (1%) at the
1983 general election to Labour candidate
Chris Smith. He contested the seat again at the
1987 general election when he lost by a similarly narrow margin (the only defecting former Labour MP who came close to regaining their seat that year) and never re-entered the House of Commons. ==Personal life==