Theresa May

On June 23, 2016, a dramatic referendum vote prompted Britain's decision to leave the European Union. Prime Minister David Cameron's sudden resignation unleashed a remarkable leadership contest, in which, one by one, rival candidates dropped out, leaving Theresa May the winner. A vicar's daughter with a commitment to duty and public service, she duly became Britain's second-ever female prime minister.

Rosa Prince is a freelance journalist and writer. She began her journalistic career at the Daily Mirror before moving to the Daily Telegraph, has worked as the US correspondent for the Telegraph, and currently lives in New York City.