The new constitutional treaty will have to be put to the people in a referendum, just as all the other major changes in the Union during our period of membership have been put. The next referendum will have to be won without the support of the economic argument. It will be the first post-gravy train referendum that we have had to face and, as such, it will be a very different type of challenge to any we have encountered in the past. The Nice treaty was easy in comparison. Our difficulties with the referenda on the Nice treaty will pale into insignificance compared to what awaits us in this context.