Nick Clegg: David Cameron is not acting in the national interest over Europe He said the Prime Minister can promise whatever he likes when speaking only for the Conservative Party. "It's entirely for the Prime Minister as leader of the Conservative Party to set out what he wants to put in the Conservative Party manifesto and what he wants to do if there was a Conservative majority government," he said. My priority remains, and will always remain: yes, reform in Europe; yes, a referendum where the circumstances are right, as we've set out in law; but above and beyond anything else, promoting growth and jobs and building a stronger economy in a fairer society. Mr Clegg echoed Labour in his accusation that the Prime Minister's plan is "not in the national interest." The opposition party has accused Mr Cameron of appeasing Eurosceptic backbenchers, rather than doing what is right for Britain. Lord Mandelson, the former Labour minister and EU trade commissioner, also argued that attempts to get Britain a fresh settlement with the EU will not be acceptable to leaders in Brussels. I think that many people, including many people in Brussels.. I think they will regard this speech as much more unvarnished, much more unqualified than they were expecting, but also unworkable," he told the BBC this mornign. I think other member states will not negotiate such a new settlement as the special state for Britain wihtin the European Union. I don't think they will provide a new treaty to accommodate Britain's demands and I don't think they will agree a timetable for negotiation that suits Britain's needs.. David Cameron will be left rather like a man without a plan.