Boris Johnson’s plans to tear up post-Brexit arrangements for Northern Ireland have come under fierce attack from Washington, with senior congressmen on both sides of the US political divide warning the “irresponsible” move is a threat to peace in the province.

We spoke to Democratic Congressman Brendan Boyle, who sits on the House Committee on Ways and Means, which is responsible for international trade agreements.

“This is a clear red line for us.” / Congressman Brendan Boyle says “there will be no US-UK trade deal - period” if the UK government moves forward with the Internal Market Bill.