This morning I have heard senior politicians from Labour and the Conservatives saying the ECJ ruling doesn’t change things. Maybe not over the next few days, but if we should get as far as a referendum it is of critical importance, because without it any ‘remain’ option would be speculative: we would have no idea if it was possible at all, or whether we might lose things compared to our current position. That would have been a major debating factor, and is now eliminated