It is “not realistic” to expect stability in Northern Ireland under the terms of the Brexit deal, the next leader of the Democratic Unionist Party (DUP) has warned.
Sir Jeffrey Donaldson said he would speak to Boris Johnson to underline his message.
His comments came as Brexit minister Lord Frost said it was “hard to see” how the Northern Ireland Protocol, the part of the Brexit deal at the heart of the controversy, can survive in its current form.
Sir Jeffrey was the only candidate to succeed Edwin Poots after his short-lived leadership of the DUP collapsed.
“The Government and those who claim to be protectors of peace and stability must step up and deal with the Protocol in a manner which respects the constitutional and economic integrity of the United Kingdom.”
The comments came after outgoing DUP leader Mr Poots said he had received a personal assurance from the UK Government that significant changes will be made to the Northern Ireland Protocol.
Mr Poots, who was forced to announce his resignation as leader last week following an internal party revolt over his decision to proceed with nominating a Stormont First Minister, predicted there would be a “significant victory” on the Protocol in July.
Lord Frost would not be drawn on private conversations between UK ministers and Mr Poots but accused the European Union of failing to show enough “pragmatism” to make the Protocol work.
The UK Government and the EU are locked in a dispute over the implementation of the Protocol, the part of the Brexit divorce deal aimed at avoiding a hard border with Ireland.
Mr Poots indicated the promise of a “significant win” had been made by Northern Ireland Secretary Brandon Lewis.
Asked about Mr Poots’ comments, Lord Frost told the Commons Foreign Affairs Committee: “I can’t comment on private conversations and accounts of them. But we haven’t made a secret of the fact that we find it hard to see how, as currently operated, important elements of the Protocol are sustainable.
“I don’t think that’s a new judgment. We have also said that we are considering all our options, and we are doing so.
“There is a real-world timetable to things that needs to be taken into account when we do that.
“That’s where we are at the moment, we are actively considering the options to deal with a situation that is hard to see as sustainable.”
One of the impacts of the deal is that deliveries of chilled meats – including sausages and burgers – could be effectively banned from crossing the Irish Sea from Great Britain to Northern Ireland at the end of the month.
The UK has formally requested an extension of that grace period to avoid a so-called “sausage war” and Lord Frost said both sides were “thinking very actively about that”.
“The basic problem is that the chilling effect on goods moving from Great Britain to Northern Ireland is pretty strong,” he said.
“Until we began implementing the Protocol nobody could quite know that.”
He said both sides were supposed to use their best efforts to reduce checks on goods arriving in Northern Ireland, but accused the EU of showing a lack of “pragmatism and reasonableness”.
“If their approach is simply to say ‘you must just implement the EU customs code as if this were any other external frontier of the EU’ then we obviously have a problem,” he said.
Lord Frost said the politics around the Protocol would be changed “hugely” by the fact Northern Ireland has a consent vote on its continuation in December 2024.
The UK’s former Brexit negotiator said if it “isn’t acceptable to all communities in Northern Ireland”, it would be “very difficult to make it work”.
