"If she's going round saying that this deal is good for Northern Ireland, when it is quite clear, even reading the face of the agreement that Northern Ireland is going to be tied in to all of the European Union regulations and in the future regardless of how damaging they are to our economy without any ability to change them", he said.
The party, that has 10 MPs in Westminster, has already abstained on a number of parliamentary votes in recent weeks in a warning to the prime minister that they are not bluffing about their threats to abandon her.
He said: "It seems to me that if the prime minister has lost a vote of that sort of significance then there has to be a question of confidence in the government".
Some opponents of Brexit have campaigned for a new referendum giving voters the option to reverse Britain's 2016 vote to leave the bloc, although the government says no such new vote will be held.
While lawmakers have voted for the advice to be published in full, Solicitor General Robert Buckland told the House of Commons on Friday that the government will provide just a "full and reasoned statement" on the legality of Brexit.
"We should not forget that the backstop world, even with a UK-EU customs union, is a bad outcome with regulatory controls needed somewhere between [Great Britain] and [Northern Ireland] serious and visible frictions and process between GB and the EU, and no security co-operation provided for", warned the bureaucrat, an admirer of the Soviet Union who once headed a university club which backed a federal Europe. Former foreign secretary Boris Johnson has already dismissed anxieties over a no-deal Brexit by comparing them to fears over the Millennium bug, while former Brexit secretary David Davis declared that "I don't find "no deal" intimidating at all".
Artist’s rendition of a Galileo satellite
United Kingdom lawmakers are set to vote on May's Brexit package on December 11, and all the signs are she's heading for a large defeat.
He added: "The prime minister has run the clock down".
"I think it is going to be really important with the legal advice, even with these televised debates for the public to get a very clear view of what the risks are in the short term but also long term".
Dominic Raab, who quit as Brexit secretary last month in protest against May's deal, told the Sunday Times: "The legal position is clear".
In voting to leave the European Union, the majority - in the Leave campaign's repeated slogan of "taking back control" - was making some form of demand of the government and parliament for a change in direction for the United Kingdom, in respect of our participation in building supra-national legal frameworks.
"Why it is a deal that delivers on Brexit but it is also a deal that protects jobs and the economy and why passing this deal in the vote that takes place in the House of the Commons will take us to certainty for the future, and that failure to do that would only lead to uncertainty".
Opposition parties plan to join forces in a bid to force the government to publish the full legal advice it received ahead of the Brexit agreement.
Nothing good comes from Packers' bad loss to Cardinals
Before the McCarthy news broke, he said in his postgame press conference that he wasn't sure what might happen down the stretch. As a result, I made the hard decision to relieve Mike McCarthy of his role as head coach, effective immediately.
War will continue so long as Ukraine government stays: Vladimir Putin
Putin told them that the issue of the sailors was a matter for the courts, his spokesman said. Russian authorities said Friday that Vladimir Putin will have a brief meeting with U.S.
Chelsea boss Sarri insists Morata has his trust
In last night's Europa League clash against PAOK , Chelsea won by a four-goal margin, no thanks to Yevhen Khacheridi's red card. Asked about visiting Chelsea's Cobham training ground, Ranieri added: "Yes I have been there, he was very, very kind with me.