The draft proposes keeping Northern Ireland in the bloc’s customs union, under the jurisdiction of the European Court of Justice. Presenting the proposed treaty, Brussels’s chief negotiator Michel Barnier said that Europe was open to other suggestions but that it must preserve the open border. May gave her verdict: the plan would undermine the integrity of the British economy and constitution.
The EU has dismissed May’s approach to a free-trade agreement outside the EU’s single market. May is due to spell out her own vision for the future trading partnership with the EU in a speech on Friday. It’s all unclear about the U.K.‘s future land border with the Republic of Ireland, an EU member, after Brexit. She promised to her own supporters on the party that the entire U.K. , including Northern Ireland , will leave the EU’s customs union. But the EU proposal will create a new frontier between the island of Ireland and the British mainland. British officials privately regard the EU’s draft as hostile. British Foreign Secretary Boris Johnson has reportedly cast doubt on maintaining no border on the island of Ireland after Brexit, in a letter written to Prime Minister Theresa May.