Policy Network is an international progressive think tank based in London. The President of Policy Network is former UK First Secretary of State and EU Trade Commissioner Lord Mandelson; Lord Liddle (former Special Adviser to President of the European Commission José Manuel Barroso) is Chairperson. Policy Network seeks to promote strategic thinking on progressive solutions to the challenges of the 21st century and the future of social democracy. It organises debates and conducts research on policy and political challenges.