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LONDON, ENGLAND - MAY 11:  London Mayor and MP for Uxbridge and South Ruislip, Boris Johnson, arrives at Downing Street on May 11, 2015 in London, England. Prime Minister David Cameron continued to announce his new cabinet with many ministers keeping their old positions.  (Photo by Carl Court/Getty Images)
LONDON, ENGLAND - MAY 11:  London Mayor and MP for Uxbridge and South Ruislip, Boris Johnson, arrives at Downing Street on May 11, 2015 in London, England. Prime Minister David Cameron continued to announce his new cabinet with many ministers keeping their old positions.  (Photo by Carl Court/Getty Images)

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Boris Johnson: I will not stand for Prime Minister

Boris Johnson announced he will not stand in the race to succeed UK Prime Minister David Cameron as leader of the Conservative Party following the vote to leave the EU.

Boris Johnson: I will not stand for Prime Minister

Boris Johnson announced he will not stand in the race to succeed UK Prime Minister David Cameron as leader of the Conservative Party following the vote to leave the EU.