Since the conclusion of Brexit, former EU negotiator Michel Barnier has been keeping himself busy, releasing his own ‘secret journal’ of the talks and wading into the Jersey fishing row to claim ‘the British are behaving like buccaneers.’  For years the former French foreign minister was the toast of Britain’s Remainers, meeting Anna Soubry, Dominic Grieve and Chuka Umunna in the middle of negotiations with Theresa May to discuss ‘ideas and solutions’.