Brexit deal: What do the documents say?
- Published
Theresa May presented what she said was an "improved deal" for Brexit, in the hope of convincing MPs to back it.
Following the prime minister's last-ditch visit to Strasbourg, the government published three documents:
A "joint legally binding instrument" on the withdrawal agreement
A joint statement about the UK and EU's future relationship
A "unilateral declaration" by the UK
Then the government's official legal adviser, Attorney General Geoffrey Cox, published his interpretation of the documents and whether they solved the problem of the backstop.
So, what are the documents' key passages?
Cox's legal advice
The attorney general considered the new documents published on Monday night, which he helped to negotiate, and concluded that they offered additional legal reassurance to the UK, which he described as substantive and binding.
But it's worth emphasising the text of the withdrawal agreement itself hasn't changed at all.
So here Mr Cox says the risk of getting stuck in the backstop has been reduced but it hasn't been removed altogether.
In other words, the guarantees that many supporters of Brexit were seeking haven't been achieved in full.
The last sentence of the attorney general's legal opinion is the most difficult for the government to swallow.
His argument is that the UK has a route out of the backstop if the EU fails to act in good faith - but proving bad faith in front of an international tribunal is a difficult thing to do.
And this excerpt makes it clear that if any future problem is caused by an honest difference of opinion that cannot be resolved, then the UK would have no way to get out of the backstop without the EU's explicit agreement.
So it may not matter much that the EU has said time and again that it doesn't want the backstop to come into operation either - the fact that these new documents don't explicitly change the circumstances surrounding the backstop means that the legal risk remains the same.
The EU and UK documents
The "joint interpretive instrument" offers another layer of legal reassurance on top of the pledges the EU has made in the past.
But it doesn't change the text of the proposed backstop arrangements, there's still no end date and no clear exit mechanism for one party without the agreement of the other.
It's pretty obvious that the EU doesn't like the backstop - it poses many awkward questions for the single market.
But in order to avoid using it, the two sides will need to come up with an alternative solution which keeps the Irish border as open as it is now.
That may not be easy.
Yes, there's an arbitration, or "dispute settlement", mechanism, but we knew that already.
This excerpt emphasises that if relations became really difficult in the future then - in theory - nothing would be ruled out.
But if things got this bad, then the backstop would only be one of many problems in the future UK-EU relationship.
The joint statement on the political declaration
One of the pledges in the joint EU-UK statement is to speed up work on alternative arrangements - a phrase favoured by Brexiteers.
The idea is to find a solution, possibly based on technology, which would help keep the border open and avoid any need to implement the backstop arrangements.
The EU is pretty sceptical about much of this, but it has now agreed, in writing, to make a serious effort to investigate further. This was supposed to have encouraged wavering MPs that their concerns were being listened to - but the overall conclusion of the attorney general's new legal opinion will carry greater weight.
Unilateral declaration
The UK has published a unilateral statement which sets out its understanding of what the text of the withdrawal agreement means.
The fact that the EU has chosen not to object to this statement, even if it disagrees with some of its conclusions, does mean that the statement carries some legal weight.
Negotiations about this document, and how the EU might respond to it, went down to the wire - but it's not clear that it will make a huge amount of difference in the long run.
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