Energy Minister Andrea Leadsom abruptly withdrew from the contest to succeed David Cameron as Britain's prime minister on Monday, leaving her rival Theresa May as the only candidate. Cameron says he is to tender resignation by Wednesday.

UK politics: Cameron says new Prime Minister May will be in post by Wednesday

Energy Minister Andrea Leadsom abruptly withdrew from the contest to succeed David Cameron as Britain's prime minister on Monday, leaving her rival Theresa May as the only candidate. Cameron says he is to tender resignation by Wednesday.