SIR – If reports are to be believed, Theresa May is to agree with the EU a backstop for Northern Ireland that includes the entire UK staying in the EU’s customs union. This would apply until the EU is satisfied that a trade agreement “solves” the border issue.
Has Mrs May really understood what this would mean? Put simply, it means that even if 100 per cent of people in the UK wanted to leave the customs union, the UK could not do so without the EU’s agreement.
Worse, if the EU decides that any trade agreement with the UK is a so-called “mixed agreement” (as the deal with Canada was) it will require approval not only by the EU in the form of the Commission, the Council and the European Parliament ...