UK won't accept Brexit deal that puts union at risk: PM's party chairman

Britain cannot accept an EU proposal to break the deadlock in the Brexit talks because it would threaten the unity of the United Kingdom by treating Northern Ireland differently, the chairman of the ruling Conservative Party said. The issue of how to maintain an open border on the island of Ireland is at the heart of the dispute between London and Brussels after British lawmakers objected to the so-called backstop insurance policy which they believe would keep the whole of the UK trapped in an EU customs union. Less than three weeks before Britain leaves the European Union, the EU's chief negotiator Michel Barnier said on Friday Britain could have the unilateral right to leave their customs union after Brexit.