Theresa May and Donald Tusk clash over Brexit: "real political difficulties"

"Real political difficulties” lie ahead for Brexit, EU summit chair Donald Tusk said after Prime Minister Theresa May gave him a preview of the vision of future trade ties she will unveil on Friday. Over lunch on Thursday at her Downing Street office, May told Tusk a draft Brexit treaty published by the European Union on Wednesday was “unacceptable” in its proposal of keeping Northern Ireland effectively in an EU customs union, potentially isolating the province economically from the British mainland.