Agreement is finally in Number 10's grasp.
The text that's taken months of officials' blood, sweat and tears has been agreed, at least at a technical level.
Now a paper's being drafted to present to the Cabinet tomorrow ready for the government's hoped-for next step - political approval from Theresa May's team, even though many of them have deep reservations.
Remember in the last 24 hours some of them have been warning privately that what's on the table is just not acceptable, and will never get through Parliament. Some even believe the prime minister ought to walk away.
But the government machine is now cranking into action. With a text ready, their long-planned rollout can begin.
The BBC's chief political correspondent Vicki Young said some ministers had "deep concerns" about the shape of the likely agreement, which critics say could leave the UK trapped in a customs agreement with the EU.
She said they would have to decide whether they could support it, and if not, whether to resign from cabinet.
Leading Brexiteers have already condemned the draft agreement, Boris Johnson saying it would see the UK remain in the customs union and "large parts" of the single market.
He told the BBC it was "utterly unacceptable to anyone who believes in democracy". "Am I going to vote against it. The answer is yes," he added.
And Labour leader Jeremy Corbyn said "given the shambolic nature of the negotiations, this is unlikely to be the good deal for the country".
'Failure to deliver'
Both the UK and EU want to schedule a special summit of European leaders at the end of November to sign off the reportedly 500 page withdrawal deal and the much shorter outline declaration of their future relationship.
Brussels has insisted it would only agree to put the wheels in motion for the summit if agreement can be reached on the issue of the Irish border.
Ambassadors from the remaining 27 EU states will meet in Brussels on Wednesday.
If a deal is agreed with the EU, Mrs May then needs to persuade her party - and the rest of Parliament - to support it in a key Commons vote.
Conservative Brexiteer Jacob Rees-Mogg said if details of the text reported by Irish broadcaster RTE were true, the UK would become a "vassal state" with Northern Ireland "being ruled from Dublin".
Such an agreement "failed to deliver on Brexit" and the cabinet should reject it, he told the BBC.
"I think what we know of this deal is deeply unsatisfactory," he said. "There seems to be growing opposition to these very poor proposals."
Meanwhile, following pressure from all sides of the Commons, ministers have agreed to provide MPs with a legal assessment of the implications for the UK of the Irish backstop and other controversial aspects of any deal.
Cabinet Office minister David Lidington said Attorney General Geoffrey Cox would make a statement to MPs and take questions ahead of the final vote on any Brexit deal.
MPs, he said, would get to see "a full reasoned position statement laying out the government's both political and also legal position on the proposed withdrawal agreement".
The Democratic Unionists' Westminster leader Nigel Dodds said he was pleased Parliament had "asserted its will" as it was imperative that all parties to the deal were clear in what way and for how long it would "legally bind" the UK.
God I can hear all the Champagne Socialists screaming from here!
