Miss Dewberry, however, had some encouraging words for the Prime Minister.
Theresa May (picture) has secured concessions from Brussels that will allow her to keep all of Britain in a customs union with the European Union (EU) and avoid a hard border in Northern Ireland, the Times reported, without citing sources.
In the letter, they caution of the economic damage that would pursue "either a destructive or blindfold Brexit", prior to the launch of Business for a People's Vote, a new campaign group.
But talks over Britain's withdrawal terms remain stuck due to a dispute over the Irish border, and the outlines of a potential deal taking shape look little like what the leave camp promised two years ago.
The key idea would be that Great Britain and Northern Ireland would remain a single customs territory under World Trade Organization rules, linked in a customs union with Ireland and the rest of the EU, diplomats told Reuters.
"These ideas are not backstops at all + don't deliver on previous United Kingdom commitments", he added, following the media report that Raab made the pitch to Coveney in a private meeting in London last Tuesday.More news: Jurgen Klopp's Liverpool Can Create A Slice Of History Against Arsenal
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Justice Secretary David Gauke warned that a no-deal Brexit would be bad for the UK.
The report by The Sunday Times (via Sky News) revealed that preparations for this deals are "far more advanced than previously disclosed", eventually leading to a document of around 50 pages being published. Neither the region's political leaders nor the Irish and British governments seem in a position to restore them.
"So, the quicker we get agreement the better, but in the end it is more important to get the right agreement than the quickest agreement".
Junior minister Damien English dismissed the suggestion that Ireland was "going to be shafted", insisting it was "not true".
Regarding the report, a spokesperson for May telling the newspaper: "This is all speculation".
"He recalled the prior commitments made that the backstop must apply "unless and until" alternative arrangements are agreed".
On Monday, Irish Prime Minister Leo Varadkar said Dublin was willing to examine ways in which the backstop could be reviewed, so long as it does not permit Britain to unilaterally walk away from it, a move his European Affairs Minister Helen McEntee said on Tuesday could help move the talks forward. "That is why we are increasingly positive on the expectation of reaching a deal".