Negotiators from the European Union and the United Kingdom on Oct. 14 reached a provisional deal on a withdrawal agreement establishing the legal terms of the British departure from the bloc. But just a few hours later, the preliminary deal fell apart when Dominic Raab, the British government's Brexit secretary, pronounced that it would not pass political muster in London. Negotiators canceled follow-up meetings, leaving the next stage of talks in the hands of British Prime Minister Theresa May and her EU counterparts, who will meet Oct. 17-18 to try to get negotiations back on track....