The bill for Britain’s Brexit divorce settlement is growing ever longer, with leaders in Brussels now saying that Britain should continue to pick up a portion of the tab for migrants living in Turkey beyond accession. Initial demands that Britain should pay into the European Union’s seven-year Multiannual Financial Framework (MFF) until it expires at the end of 2020 – a year after Brexit – have since expanded to include references to “issues resulting from” the budget, as well as those related to the European Investment Bank (EIB) and European Development Fund (EDF). German representatives are now suggesting that “issues”...