Our senior fellow Dr Katy Hayward explains three key points on how the deal impacts Northern Ireland. Firstly, the deal avoids a hard Irish border, as there will no checks or controls on goods crossing the border on the island of Ireland. Secondly, Northern Ireland remains part of the UK’s customs territory so it will benefit from the UK’s free trade deal agreements after Brexit and thirdly Katy explains why the Democratic Unionist Party have expressed opposition to the deal so far.