Theresa May dealt a blow to Ireland in her Brexit white paper when she said she wanted in effect to leave the EU customs union, confirming Brexit poses a huge threat to frictionless cross-border trade on the island of Ireland, the mainstay of the Irish economy.
The Irish Ambassador to the UK, Daniel Mulhall said last month that comprehensive customs and border checks between Ireland and Northern Ireland are not remotely possible
Northern Ireland polled more europhilic than other regions in the UK before the election. Its Remain vote of 55.7 per cent was the third strongest in the country. Nationalists wanted the UK to remain in the EU, but unionists generally wanted to leave. Sinn Féin, the SDLP, the Ulster Unionists, Alliance and the Green Party wanted to stay. The Irish government also wanted a remain vote. The DUP, the TUV and the left-wing People before Profit party backed Brexit.
As Sinn Fein and the DUP jostle for position in a new power sharing agreement at Stormont the Brexit divide has come to the fore. If the parties are unable to agree an accommodation, we may yet see a return to direct rule of the province from Westminster.