On 12 December last year, the chairmen of the Party of European Socialists, the European People' s Party, the Liberal, Democrat and Reform Party and the European Free Alliance and the secretary-general of the European Federation of Green Parties themselves stated in a joint declaration that clarification was needed as to what a European party is.
Den 12. december sidste år krævede formændene for De Europæiske Socialdemokraters Parti, Det Europæiske Folkeparti, Det Demokratiske Parti for Europas Nationer, Den Europæiske Fri Alliance og generalsekretæren for Den Grønne Føderation i Europa i en fælles erklæring, at det skal afklares, hvad et europæisk parti er.