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Boris Johnson's father Stanley has been speaking to ITV News' Libby Weiner about his son's re-election as London Mayor.
He said a lot of personal quality came through and it was "a superb achievement".
Speaking at the National Association of Head Teachers (NAHT) annual conference, Education Secretary Michael Gove said the election results were "disappointing", but added he was "delighted that Boris Johnson had won the race for Mayor of London".
The newly re-elected London Mayor Boris Johnson thanked the people of London for giving him a "second mandate".
David Cameron said he was "delighted to congratulate" the re-elected Conservative Mayor Boris Johnson but added that "now what matters is working together for the good of London".
Ken Livingstone hit out at Boris Johnson this morning, describing him as a 'do-nothing Mayor'. He said: "With the exception of this rather silly little cable car there's nothing else he has started. If we have another four years like that then by the end of this decade London will be insufferable."
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".
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Boris Johnson said he would "definitively, categorically, emphatically" turn down the job of Prime Minister if it was offered to him.
So what challenges await the man tipped by many to one challenge for the leadership of the Tory party?