In a situation where massive campaigns against government policy have brought millions into the streets, but established political parties have lost a lot of credibility, the idea of unifying the radical Left in an electoral alliance was much discussed. There were for example talks for an alliance with the French Communist Party, after both parties worked together on the victorious campaign of the 'No' in the 2005 French referendum on the Constitution of the European Union. Relations between the two parties had been improving since Marie-George Buffet took over the leadership of the PCF.