The hon. Gentleman will have heard the Leader of the Labour party say on numerous occasions that he would not have walked out of the negotiations. There was no treaty on the table at that time.
I want to move on, because this point is important. As I have said, we need a mature and positive approach to Europe from the Government. When we get the opportunity to work on a cross-party basis, we should do so. We should engage in Europe and build alliances so that when important issues come up, such as those that we are debating, we have credibility and influence among our European neighbours.