Cabinet ministers have been invited to read the UK's draft deal with the EU although it's not yet complete. Theresa May has said the withdrawal deal is 95% done - but there is no agreement yet on how to guarantee no hard border in Northern Ireland.
This is proving to be the most contentious area, with the UK prime minister under pressure from her own party as well as the EU. The UK is due to leave the EU on 29 March 2019. But as yet there is no withdrawal deal in place, and EU chief negotiator Michel Barnier said it was "clear that more work is needed".
Mrs May has described the withdrawal agreement - covering issues like citizens' rights, the transition period and Gibraltar - as being 95% complete. Leaving the Cabinet Office, Environment Secretary Michael Gove told Sky News it was a "great document".
The UK and the EU cannot agree on the precise arrangements to avoid new border checks in Northern Ireland. Brussels is more concerned about the form in which the backstop exists, not how it's exited from.
The EU is exploring the concept of a UK-wide customs arrangement to deal with the Irish border issue. But some member states want extra guarantees on rules and regulations if they are to offer the UK quota-free and tariff-free access to the single market.