From the forthcoming Oxford Handbook of the United States Constitution, Adrian Vermeule (Harvard): The Administrative State: Law, Democracy, and Knowledge. William H. Simon (Columbia): The Organizational Premises of Administrative Law. Archie Morris (Bowie State): On American Federalism: Opposite and Rival Interests. Mark Seidenfeld (FSU): The Role of Politics in a Deliberative Model of the Administrative State. Yasmin Dawood (Toronto): Democracy and the Problem of the Partisan State. Peter John (UCL): Agendas and Instability in American Politics. David Sterrett (UIC) and Dennis Chong (USC): Self-Interest in Contemporary Public Policy Disputes. Margo Schlanger (Michigan): Offices of Goodness: Influence without Authority in Federal Agencies. Joseph White (Case Western): The Purpose and Processes of Pork-Barrel Politics. Timothy M. LaPira (JMU), Herschel F. Thomas (Texas), Frank Baumgartner (UNC): Washington Lobbyists in the Core and on the Periphery. Hye Young You (Harvard): Ex Post Lobbying. We all want more of everything — except taxes: Alexandra Filindra and Shanna Pearson-Merkowitz on how opinion polling constrains Washington. Why does public conflict over societal risks persist in the face of compelling and widely accessible scientific evidence? A look at motivated numeracy and enlightened self-government. The first chapter from The Substance of Representation: Congress, American Political Development, and Lawmaking by John S. Lapinski.