FILE: Theresa May, U.K. prime minister, delivers a speech setting out a new proposal for her Brexit deal in London, U.K. (Photographer: Chris Ratcliffe/Bloomberg)

What Britain Needs From Its Next Prime Minister

(Bloomberg Opinion) -- Theresa May’s departure as Britain’s prime minister won’t heal the country’s divisions or end its Brexit nightmare. This drawn-out crisis is so far from being resolved, her s...