Britain's new Prime Minister Theresa May and her husband Philip John (L) arrive back in Downing Street in central London on July 13, 2016 on the day she takes office following the formal resignation of David Cameron. 
Theresa May took office as Britain's second female prime minister on July 13 charged with guiding the UK out of the European Union after a deeply devisive referendum campaign ended with Britain voting to leave and David Cameron resigning. 
 / AFP / Geoff CADDICK        (Photo credit should read GEOFF CADDICK/AFP/Getty Images)