Boris Johnson has said that he does not want to become Prime Minister and that his focus is on London, where he has a "massive challenge" set for the next four years.
When asked on radio whether he wanted to become Prime Minister he said the answer is "categorically no".
– Boris Johnson, Mayor of London speaking with Nick Ferrari on LBC 97.3
"Everybody knows that the mayoralty of London is simply the most wonderful and challenging and fascinating job in British politics. I can say categorically that the answer to that is no I don't want to do that. London's got an amazing future, I'd be absolutely crazy not to want to focus on that and that's what I want to do."
Ken Livingstone has outlined his concerns for London under Boris Johnson's rule. He says if we have eight years of a "do-nothing mayor" then London will face a "real crisis".
Boris Johnson is to be sworn in as London mayor at 12 o'clock this lunchtime. The ceremony will be followed by a speech at City Hall.
As well as the announcement of the new Mayor of London the 11 London-wide Assembly Members have been decided as follows:
Jenny Jones - Green
Caroline Pidgeon - Lib Dem
Nicky Gavron - Lab
Andrew Boff - Con
Darren Johnson - Green
Murad Qureshi - Lab
Gareth Bacon - Con
Fiona Twycross - Lab
Victoria Borwick - Con
Tom Copley - Lab
Stephen Knight - Lib Dem
The political newcomer took a fifth of the vote with 83,914.
Mr Livingstone said "this is the defeat I most regret" and said: "This is my last election."
Mr Johnson said he would continue to "fight for a good deal for Londoners".