LONDON, ENGLAND - MAY 04:  Boris Johnson (R) speaks after the announcement of his victory in the London Mayoral elections as as Ken Livingstone looks on at City Hall on May 4, 2012 in London, England. Conservative Mayor Mr Johnson won a second term as London Mayor after a close run election campaign with Labour's Ken Livingstone coming second in the polls.  (Photo by Peter Macdiarmid/Getty Images)