The first election to the office of Mayor of London took place on 4 May 2000. The election was won by Independent candidate, Ken Livingstone, who solidly defeated the Conservative candidate Steven Norris in what remains the largest margin of victory for a mayoral candidate.
This remains the last election which was not won by a candidate representing the Labour Party or Conservative Party. The percentage of the popular vote which was won by Ken Livingstone remains the largest ever achieved by a winning candidate for mayor.
Ashwinkumar Tanna, who had been a candidate for UKIP in the Tottenham by-election, 2000, ran on an independent ticket with a range of policies including opposing privatisation of London Underground, local involvement in policing and the establishment of a city-wide business forum.
Ken Livingstone had sought the Labour Party nomination but was defeated by Frank Dobson. He described the result as "tainted" because the election system gave greater weight to the votes of London Labour MPs rather than rank-and-file party members, and decided to contest the election as an Independent candidate. On handing in nomination papers he was automatically expelled from the Labour Party.
Steve Norris had lost the original selection ballot for Conservative candidate to Jeffrey Archer, but Archer stood down as a candidate when a newspaper printed a story accusing him of committing perjury during a 1987 libel trial (he was later convicted and imprisoned).