May: Fantastic result for London
Home Secretary Theresa May said "the greatest city in the world has re-elected a Conservative Mayor in Boris Johnson and I think it's a fantastic result for London".
Would you take Tory top job? Boris' definitive answer
Boris Johnson said he would "definitively, categorically, emphatically" turn down the job of Prime Minister if it was offered to him.
Having won a second term Boris faces a stiff test
So what challenges await the man tipped by many to one challenge for the leadership of the Tory party?
A look back on the political life of Ken Livingstone
With defeat at the polls Ken Livingstone, a colourful political figure for over 40 years, has stepped down.