The final paragraph of Cox’s advice notes that in some circumstances the UK could suspend or exit the backstop under the Vienna Convention on the Law of Treaties.
He advised the man who co-won a Nobel Peace Prize for his work on the Belfast Agreement – and argues that the backstop breaches it.
The Secretary-General of the European Commission denies that either of them want to punish Britain.
Selmayr and Weyand have got much of their way so far. And there’s every chance they will continue to dominate the process.
For nothing in return, by way of a guaranteed free trade deal, the Prime Minister is willing to hand over at least £40 billion, potentially £60 billion.
The DUP hates the idea of Corbyn in Downing Street. But it is very hard to imagine it waving the draft deal through.
They should first seek to persuade May not to press for a decision, since there will have been no opportunity for full timely study of the text.
What will happen this week? When could a summit take place? What would the Cabinet say – and what might the Attorney General do?