1. ITV Report

Boris Johnson reveals his claim to the US presidency

Boris Johnson appears on the Late Show with David Letterman. Photo: CBS

London Mayor Boris Johnson has told US chat-show host David Letterman he could "technically" be US president after being born in New York.

Mr Johnson, who was asked by the show's host how long he had been cutting his own hair, was promoting London and his new book - 'Johnson's Life of London' - on The Late Show with David Letterman.

Asked if he could be the next Prime Minister, Boris told Letterman he had "as much chance of being reincarnated as an olive".