There has been substantial disquiet among Brexiteers about the Chequers agreement proposals - shown to Germany's Angela Merkel before her own Cabinet, according to some reports - which would leave Britain effectively still inside the EU's Single Market for goods and agricultural products but outside the Single Market for services - such as it is - and subject to a "common rulebook" dictated by the European Union court, as well as bound to European Union standards on state aid, employment, and other regulations and forced to collect customs duties on the bloc's behalf, among other onerous obligations.
Some Brexit-supporting legislators are angry at the proposals, saying they will keep Britain tethered to the bloc and unable to change its rules to strike new trade deals around the world.
He stressed that the European Court of Justice's "remit in the United Kingdom will end when we leave" but "of course there will be a degree of looking from one group of judges to another". The UK would apply its own tariffs for goods intended for the UK, but set European Union tariffs for goods heading into the EU.
As we said in our manifesto, we believe it is necessary to agree the terms of our future partnership alongside our withdrawal, reaching agreement on both within the two years allowed by Article 50.
At a summit at Chequers in the English countryside on Friday, all 12 cabinet members agreed to a plan that would follow European Union rules on goods to ensure "frictionless" trade and allow European Union courts to have some oversight on certain subjects.
"We want to stick to the timetable agreed", European Commission president Jean-Claude Juncker said Friday.
She said there was a "willingness to sit down and talk" about the plans.
The EU's chief Brexit negotiator Michel Barnier said he was looking forward to the publication of the white paper and the EU would consider whether the proposals are "workable and realistic".
This is risky for Mrs May, but also for her critics.
"An egg that is very softly boiled isn't boiled at all".
"I think for the first time we're seeing a very direct language which points to a much softer Brexit than I think some people have been commenting on and that has to be welcomed", Simon Coveney told national broadcaster RTE.
"The cost, complexity and bureaucracy created by crashing out of the customs union and adopting alternative arrangements is the last thing that our businesses need as we seek to grow", they said in an open letter reported in The Times. Dumbfounded ministers watched Boris Johnson at dinner toast the newfound collective responsibility around a deal that he did not like.
The document has not been endorsed by the ERG but was "devastating", a Brexiteer source said.
However, at least 10 are expected this weekend to submit letters calling for May to be replaced as leader, and more could follow if the prime minister doesn't satisfy the pro-Brexit wing of her party in her response to parliamentary questions about her plan next week.
May will have a key meeting with members of her Tory party to discuss her plan in Parliament on Monday.
Asked if the prime minister could survive.
"It's more important to do what you have promised the British electorate than stick by lines in the sand".
Vicky Ford urged colleagues not to get "too hot under the collar" until they had seen the details. That was meant to kick-start talks that have been stalled for months.
Taoiseach Leo Varadkar spoke to Mrs May about the plans on Saturday.
"It would amount to the British government tying the hands of British business".