May wins PM race after pro-Brexit rival quits

By Elizabeth Piper and Mark Trevelyan LONDON (Reuters) - Home Secretary Theresa May will become Britain's prime minister on Wednesday, with the task of steering its withdrawal from the European Union, after rival Andrea Leadsom abruptly terminated her short-lived and disastrous leadership campaign. May, 59, will succeed David Cameron, who announced he was stepping down after Britons unexpectedly voted last month to quit the EU. Britain's planned withdrawal has weakened the 28-nation bloc, create