Boris Johnson's father on his son's 'superb achievement'

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".

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Boris Johnson sworn in

The newly re-elected London Mayor Boris Johnson thanked the people of London for giving him a "second mandate" as he was sworn in at City Hall after defeating Ken Livingstone.