Britain's Theresa May sought to apologize to Conservatives for her failed election gamble that cost the party its majority in parliament, and told her lawmakers Monday that she will serve as prime minister "as long as you want me".
Conservative Prime Minister Theresa May first triggered the Article 50 mechanism to leave the bloc nearly three months ago, with formal discussions due to begin on 19 June.
Sparring between the two sides is in full force ahead of the scheduled start of complex negotiations with Brussels next week, with a tight timetable that would see Britain leave the European Union in March 2019. Thus we must begin this negotiation. "We are ready as soon as the United Kingdom itself is ready", he said.
With the two-year clock on Brexit ticking away since March, when a letter from May formally started proceedings, Barnier dismissed the suggestion of postponing the negotiations and said such a delay would only prompt further instability.
"My preoccupation is that time is passing, it is passing quicker than anyone believes because the subjects we have to deal with are extraordinarily complex", Barnier told newspapers including the Financial Times.
He added: "I'm sure we all look forward to welcoming the Queen's Speech just as soon as the coalition of chaos has been negotiated".
While the DUP are deeply eurosceptic, they have balked at some of the practical implications of a so-call hard Brexit - including a potential loss of a "frictionless border" with the Republic of Ireland - and talks will touch on efforts to minimize the potential damage to Northern Ireland. A Downing Street spokeswoman said ministers "discussed the ongoing talks with the DUP to secure a confidence and supply arrangement".
"The Tory civil war on the European Union which has ripped it apart since the Maastricht rebellions of the early 1990s, and which the referendum was supposed to solve, is now raging again", said Chris Grey, an academic who specializes in Brexit at Royal Holloway in London.
"In the past, Prime Ministers and retired statespersons could fly in to Belfast, to provide cover for a new compromise between the parties that allowed them to get back to work", he said.
She has called for an "open Brexit" strategy that would focus on retaining trade ties and has said she wants a role in devising the government's policy.
"Not only have past bills to be settled, but future liabilities have to be anticipated, decisions made about the running of the business, and rights and responsibilities in respect of the children, agreed".
Mr Bruton was in Britain for the annual Henry Grattan lecture in association with Trinity College Dublin and hosted at the Irish Embassy in London.
That border will become an external European Union border after Brexit and there have been growing fears that any border controls would have a serious economic impact on both Northern Ireland and the Republic.
Britain's embattled Prime Minister Theresa May on Sunday unveiled her full cabinet, making few changes as the premier clings to power after losing her parliamentary majority in a snap election.
Media reports suggested an agreement could be delayed into next week, but the spokesman said: "I certainly have heard nothing on this side to indicate that".
Scottish Conservative leader Ruth Davidson, whose 13 MPs saved May from election disaster, said the government should "think again" about its approach.