Mr Peter Hain (Neath) (Lab): If the Foreign Secretary achieved his reform objectives and any consequential treaty changes in principle with European Council members, but another country subsequently rejected those treaty changes in a referendum, what would he do?
Mr Hague: That argument can be made about any treaty in the European Union. In respect of past treaties, including those that the right hon. Gentleman negotiated, my party would say that the people of this country should have had the right to say no in a referendum. Treaty change, of course, requires unanimous approval. As he well knows, that has not stopped many treaties over the past 15 years—indeed, over the past few decades—and it will not stop treaty change in future.