 He writes frequently on international development, post-conflict reconstruction, foreign policy, the role of the United Nations and other multilateral organizations in international affairs, and the united States' role in the world order.In 2010 he was nominated by the Obama Administration to serve as the chair of the Development Assistance Committee at the Organisation for Economic Co-operation and Development.He was elected unanimously by the 24 member states to chair the committee responsible for coordinating the activities of the bilateral donors.