The best way out of the current impasse over the draft Withdrawal Agreement with the EU would be to accept President Tusk’s offer, made in March and repeated as recently as October, of a Free Trade Agreement involving zero tariffs and including services – extended to the whole UK. That would involve replacing the Irish Protocol in the draft agreement by a commitment by Ireland, the EU and UK that they will retain an invisible border between Northern Ireland and the Irish Republic, as all have pledged to do if there is no Withdrawal Agreement…