The leading Brexiteeer told Sky News he thought it was worth noting Theresa May had met with the German Chancellor one day before the crunch Brexit talks at Chequers.
The Tory backbencher added it would have been unconstitutional of the Prime Minister to discuss British policy with EU leaders before her own Cabinet.
He said: “I think they might have been taken to Brussels and to Berlin before they were presented at Chequers which is a serious question.
“And there’s another question about how they were drawn up because they were drawn up in secret without telling the Secretary of State for leaving the European Union David Davis what was going on, whilst his department was working on a White Paper.
“I don’t think it has been handled in a proper governmental system and in accordance with our constitutional norms.”
Asked if he was accusing the Prime Minister of having pre-agreed her Brexit strategy with Angela Merkel before her Cabinet, Mr Rees-Mogg replied: “No, I’m just noting that she went to see the German Chancellor just before these proposals were put forward, which seemed not to be unwelcome to Mrs Merkel.
“I think it’s an interesting point to note but it’s not within the norms of the constitution to discuss British policy with other leaders before it’s presented to the Cabinet.
“So I’m concerned about this process and I think the result of it is bad.
“But there are many other areas of policy where I support the Prime Minister so the Prime Miniter personally retains my Government but this policy does not.
“I will not support it.”
Mrs May indicated the Cabinet had agreed upon a collective position on its Brexit stance at the Chequers meeting on Friday and would seek a model similar to the single market for goods and the “facilitated customs arrangement”.
But the new proposals sparked the resignations of Brexit Secretary David Davis and Foreign Secretary Boris Johnson on Monday.
The Prime Minister commented on the resolutions stating: “Today in detailed discussions the cabinet has agreed our collective position for the future of our negotiations with the EU. Our proposal will create a UK/EU free trade area which establishes a common rulebook for industrial goods and agricultural products.
“This maintains high standards in these areas, but we will also ensure that no new changes in the future take place without the approval of our parliament. As a result, we avoid friction in terms of trade, which protects jobs and livelihoods, as well as meeting our commitments in Northern Ireland.”
Mrs May has proposed a UK-EU free trade area which would establish a common rulebook for industrial goods and agricultural products.
The European Research Group (ERG) led by Mr Rees-Mogg has now proposed to amend the Prime Minister’s Trade Bill as they claim the Government has “broken their trust”.
A spokeswoman for Number 10 responded to Mr Rees-Mogg’s accusation: “The Prime Minister meets with European leaders as part of her regular engagements.
“The meeting with Angela Merkel was private so we don’t have any further details on it.”
Source : EXPRESS