Partner, O'Melveny & Myers LLP
Walter Dellinger is an influential authority on appellate and Supreme Court decisions, lending his experience as a former Solicitor General and decades of legal knowledge to amicus briefs, a multitude of pro bono clients, and public and private companies involved in bet-the-company litigation. A frequent commentator for the Wall Street Journal, Slate, and major television networks, Walter holds the designation of the Douglas B. Maggs Emeritus Professor of Law at Duke University. He was named one of the 100 Most Influential Lawyers in America by the National Law Journal and recognized with a Lifetime Achievement Award from the American Lawyer.
Walter, who formerly served as O’Melveny’s Diversity and Inclusion Partner, helped convince the US Supreme Court that proponents of Proposition 8, California's ban on same-sex marriage, did not have standing to appeal a court order invalidating it. That ruling, Hollingsworth v. Perry, cleared the way for marriage equality in California and eventually nationwide.
Walter served as Assistant Attorney General and head of the Office of Legal Counsel (OLC) from 1993 to 1996. He was acting Solicitor General for the 1996-97 Term of the US Supreme Court. During that time, Walter argued nine cases before the Court, the most by any Solicitor General in more than 20 years. His arguments included cases dealing with physician-assisted suicide, the line item veto, the cable television act, the Brady Act, the Religious Freedom Restoration Act, and the constitutionality of remedial services for parochial school children.
Walter has served as Special Counsel to the Board of Directors of the New York Stock Exchange in connection with the NYSE’s transformation into a publicly held company and its acquisition of an electronic trading company.
After serving in early 1993 in the White House as an advisor to the President on constitutional issues, Walter was nominated by the President to be Assistant Attorney General. He was confirmed by the Senate in October 1993 and served for three years. As head of the OLC, Walter issued opinions on a wide variety of issues, including: the President's authority to deploy United States forces in Haiti and Bosnia; whether the trade agreements required treaty ratification; and a major review of separation of powers questions. He provided extensive legal advice on questions arising out of the shutdown of the federal government, on national debt ceiling issues, and on loan guarantees for Mexico.
Walter has published articles on constitutional issues for scholarly journals including the Harvard Law Review, the Yale Law Journal, and the Duke Law Journal, and has written for the New York Times, the Washington Post, Newsweek, the New Republic, and the London Times. He has been a visiting professor at the Catholic University of Belgium and has given lectures to university faculties in Florence, Siena, Nuremberg, Copenhagen, Leiden, Utrecht, Tilburg, Mexico, and Rio de Janeiro, and has delivered major lectures at Stanford, Yale, Harvard, Michigan, Berkeley, Penn, Duke, Chicago, and other US law schools. He has testified more than 25 times before committees of Congress.
In private practice, Walter’s arguments before the United States Supreme Court have included Exxon Shipping Co. v. Baker, Morgan Stanley Capital Group Inc. v. Public Utility District No. 1 of Snohomish County, Alabama v. North Carolina, Hosanna-Tabor v. EEOC, Heller v. District of Columbia, Jackson v. Birmingham School District, Brown v. Legal Foundation of Washington, US Airways v. Barnett, Utah v. Evans, Hunt v. Cromartie, and Hunt v. Easley. His most notable Court of Appeals and state supreme court arguments include Martha Stewart v. United States, Whiteside v. United States, and Exxon v. Alabama, LCI v. Phillips.
General Counsel, Department of the Army
Mr. Benedict S. Cohen was appointed by President Bush to serve as the General Counsel for the Department of the Army effective on August 4, 2006. Mr. Cohen has twenty years of experience in high-level positions across the federal government, with a principal focus on national security and foreign policy. Prior to his current position, he served as the Managing Executive for Policy and Counselor to Chairman Cox at the U.S. Securities and Exchange Commission, where he focused on legal and policy issues facing the agency and enhancing the Commission’s crisis-management and homeland-security capabilities. Prior to taking this position, he served as staff director of the Committee on Homeland Security of the U.S. House of Representatives, where he managed the transition from select committee to full standing committee status and the passage of authorization legislation for the Department of Homeland Security and of legislation reforming DHS’ homeland security grant program.
Mr. Cohen has also served as Deputy General Counsel (Environment & Installations) for the Defense Department, in which capacity he spearheaded DoD’s Readiness and Range Preservation Initiative, a multifaceted legislative, regulatory, and resource-management program to ensure sustainability of the military’s test and training capabilities and foster better environmental stewardship. He also provided legal support for DoD’s installation initiatives, and served as a principal spokesman for the Department on environmental and installations issues. He has also served in senior positions in the White House Counsel’s Office, the congressional leadership staff, and the Department of Justice, as well as serving in two law firms.
Mr. Cohen graduated from Yale magna cum laude in 1980 with a B.A. in history, and from the University of Chicago Law School in 1983, having served as an Associate Editor of the Law Review. He clerked for Judge Laurence H. Silberman of the U.S. Court of Appeals for the D.C. Circuit. He lives in American University Park in Washington, D.C. His wife is an attorney in private practice. He has two children, aged eight and ten.
Scholar in Residence, The Constitution Project
Louis Fisher is Scholar in Residence at the Constitution Project. Previously he worked for four decades at the Library of Congress as Senior Specialist in Separation of Powers (Congressional Research Service, from 1970 to 2006) and Specialist in Constitutional Law (the Law Library, from 2006 to 2010). During his service with CRS he was research director of the House Iran-Contra Committee in 1987, writing major sections of the final report. Fisher's specialties include constitutional law, war powers, budget policy, executive-legislative relations, and judicial-congressional relations.
After completing his doctoral work in political science at the New School for Social Research in 1967, he taught full-time at Queens College for three years. Later he taught part-time at Georgetown University, American University, Catholic University law school, Indiana University, Catholic University, the College of William and Mary law school, and Johns Hopkins University. Currently he is a Visiting Professor at the William and Mary law school.
His books include President and Congress (1972), Presidential Spending Power (1975), The Constitution Between Friends (1978), The Politics of Shared Power (4th ed. 1998), Constitutional Conflicts Between Congress and the President (6th ed. 2014), Constitutional Dialogues (1988),American Constitutional Law (with Katy J. Harriger, 10th ed. 2013), Presidential War Power (3rd ed. 2014), Political Dynamics of Constitutional Law (with Neal Devins, 5th ed. 2011), Congressional Abdication on War and Spending (2000), Religious Liberty in America: Political Safeguards (2002), Nazi Saboteurs on Trial: A Military Tribunal & American Law (2003; 2d ed. 2005), The Politics of Executive Privilege (2004), The Democratic Constitution (with Neal Devins, 2004), Military Tribunals and Presidential Power: American Revolution to the War on Terrorism (2005), In the Name of National Security: Unchecked Presidential Power and the Reynolds Case (2006), The Constitution and 9/11: Recurring Threats to America’s Freedoms (2008), The Supreme Court and Congress: Rival Interpretations (2009), On Appreciating Congress: The People’s Branch (2010), Defending Congress and the Constitution (2011), On the Supreme Court: Without Illusion and Idolatry(2013), and The Law of the Executive Branch: Presidential Power (2014). His textbook in constitutional law is available in two paperbacks:Constitutional Structures: Separation of Powers and Federalism and Constitutional Rights: Civil Rights and Civil Liberties. With Leonard W. Levy he edited the four-volume Encyclopedia of the American Presidency (1994).
He has twice won the Louis Brownlow Book Award (for Presidential Spending Power and Constitutional Dialogues). The encyclopedia he co-edited was awarded the Dartmouth Medal. In 1995 he received the Aaron B. Wildavsky Award “For Lifetime Scholarly Achievement in Public Budgeting” from the Association for Budgeting and Financial Management. In 2006 he received the Neustadt Book Award for Military Tribunals and Presidential Power. In 2011 he received the Walter Beach Pi Sigma Alpha Award from the National Capital Area Political Science Association for strengthening the relationship between political science and public service. In 2012 he received the Hubert H. Humphrey Award from the American Political Science Association in recognition of notable public service by a political scientist. The July 2013 issue of PS: Political Science & Politics includes a symposium on "Law and (Disciplinary) Order: A Dialogue about Louis Fisher, Constitutionalism, and Political Science.
Dr. Fisher has been invited to testify before Congress more than 50 times on such issues as war powers, state secrets privilege, NSA surveillance, executive spending discretion, presidential reorganization authority, Congress and the Constitution, the legislative veto, the item veto, the Gramm-Rudman deficit control act, executive privilege, committee subpoenas, executive lobbying, CIA whistleblowing, covert spending, the pocket veto, recess appointments, the budget process, the balanced budget amendment, biennial budgeting, and presidential impoundment powers.
He has been active with CEELI (Central and East European Law Initiative) of the American Bar Association, traveling to Bulgaria, Albania, and Hungary to assist constitution-writers; participating in CEELI conferences in Washington, D.C. with delegations from Bosnia-Herzegovina, Lithuania, Romania, and Russia; serving on CEELI "working groups" on Armenia and Belarus; and assisted in drafting constitutional amendments for the Kyrgyz Republic. As part of CRS delegations he traveled to Russia and Ukraine to assist on constitutional questions. For the International Bar Association he helped analyze the draft constitutions for Swaziland and Zimbabwe.
He is the author of more than 500 articles in law reviews, political science journals, encyclopedias, books, magazines, and newspapers. He has been invited to speak in Albania, Australia, Belgium, Bulgaria, Canada, China, the Czech Republic, Denmark, England, France, Germany, Greece, Israel, Japan, Macedonia, Malaysia, Mexico, the Netherlands, Oman, the Philippines, Poland, Romania, Russia, Slovenia, South Korea, Sweden, Taiwan, Ukraine, and the United Arab Emirates. The topics include a range of constitutional, political, and institutional issues.
George P. Shultz Senior Fellow in Foreign Policy and National Security Affairs, Emeritus, Hoover Institution
Abraham D. Sofaer was appointed the first George P. Shultz Distinguished Scholar and Senior Fellow at the Hoover Institution in 1994. Named in honor of former US secretary of state George P. Shultz, the appointment is awarded to a senior scholar whose broad vision, knowledge, and skill will be brought to bear on the problems presented by a radically transformed global environment.
Sofaer's work focuses on the power over war within the US government and on issues related to international law, terrorism, diplomacy, and national security. His most recent books are Taking on Iran: Strength, Diplomacy, and the Iranian Threat(Hoover Institution Press, 2013) and The Best Defense?: Legitimacy and Preventive Force (Hoover Institution Press, 2010).
From 1985 to 1990, he served as a legal adviser to the US Department of State, where he resolved several interstate matters, including the dispute between Egypt and Israel over Taba, the claim against Iraq for its attack on the USS Stark, and the claims against Chile for the assassination of Orlando Letelier. He received the Distinguished Service Award in 1989, the highest state department award given to a non–civil servant.
From 1979 to 1985, Sofaer served as a US district judge in the Southern District of New York. From 1969 to 1979, he was a professor of law at Columbia University School of Law and wrote War, Foreign Affairs, and Constitutional Power: The Origins.From 1967 to 1969, he was an assistant US attorney in the Southern District of New York, after clerking for Judge J. Skelly Wright on the US Court of Appeals in Washington, DC, and the Honorable William J. Brennan Jr. on the US Supreme Court. He practiced law at Hughes, Hubbard and Reed from 1990 to 1994.
A veteran of the US Air Force, Sofaer received an LLB degree from New York University School of Law in 1965, where he was editor in chief of the law review. He holds a BA in history from Yeshiva College (1962). Sofaer is a founding trustee of the National Museum of Jazz in Harlem and a member of the board of the Koret Foundation.
His research papers are available at the Hoover Institution Archives.
Emanuel S. Heller Professor of Law, University of California at Berkeley; Senior Research Fellow, School of Civic Leadership, Civitas Institute, University of Texas at Austin; Nonresident Senior Fellow, American Enterprise Institute
John Yoo is the Emanuel Heller Professor of Law. He is also Distinguished Visiting Scholar, School of Civic Leadership and Senior Research Fellow, Civitas Institute, at the University of Texas at Austin. He is also a Nonresident Senior Fellow at the American Enterprise Institute.
His most recent book, The Politically Incorrect Guide to the Supreme Court, co-authored with Robert Delahunty, was published in 2023. Professor Yoo’s other books include Defender-in-Chief: Trump’s Fight for Presidential Power; Striking Power: How Cyber, Robots, and Space Weapons Change the Rules for War, Point of Attack: Preventive War, International Law, and Global Welfare, and Crisis and Command: A History of Executive Power from George Washington to George Bush.
Professor Yoo has published more than 100 articles in academic journals on subjects including national security, constitutional law, international law, and the Supreme Court. He also regularly contributes to the editorial pages of the Wall Street Journal, New York Times, Washington Post, Los Angeles Times, and National Review, among others.
Professor Yoo has served in all three branches of government. He was an official in the U.S. Department of Justice, where he worked on national security and terrorism issues after the 9/11 attacks. He served as general counsel of the U.S. Senate Judiciary Committee. He has been a law clerk for Supreme Court Justice Clarence Thomas and federal appeals Judge Laurence Silberman. He has been a visiting professor at Seoul National University in South Korea, the Interdisciplinary Center in Israel, Keio University in Japan, Trento University in Italy, the University of Chicago, and the Free University of Amsterdam.
Professor Yoo supervises the Public Law and Policy Program and the California Constitution Center. He also serves on the boards of the Pacific Legal Foundation, the Federalist Society’s Separation of Powers and Federalism Division, the Universidad Cientifica del Sur Law School, and the Asia-Pacific Law Institute at Seoul National University. He is a winner of the Federalist Society’s Paul Bator award and been the Edwin Meese III Originalism Lecturer at the Heritage Foundation.
Professor Yoo graduated from Yale Law School and summa cum laude from Harvard College.
Retired Partner, Sullivan & Cromwell LLP
Upon his resignation as the Legal Adviser of the U.S. Department of State in January 1993, Mr. Williamson rejoined Sullivan & Cromwell's Washington, D.C. office. He originally joined the Firm in 1964 after graduating from New York University School of Law, where he was an editor of the Law Review. He became a partner of the Firm in 1971, moved to its London office in 1976, returned to its New York office in 1979, moved to its Washington, D.C. office in 1988 and became Of Counsel in 2007. In 2018, he retired from the firm.
At Sullivan & Cromwell, Mr. Williamson engaged in a broad and wide-ranging domestic and international financing and transactions practice, as well as advice with respect to corporate governance issues, the United States’ economic sanctions laws, the ethics rules applicable to government officials and the immunities of foreign sovereigns and international organizations.
Mr. Williamson has been an active participant on panels and other forums involving public international law and national security issues, such as the domestic and international bases for the use of force, the role of the United States with respect to the International Criminal Court, the law of the sea and the application of international legal principles in the war against terrorism.
Mr. Williamson is a member of the Council on Foreign Relations and a former member of the Executive Council of the American Society of International Law, the Executive Committees of the Business and Advisory Committee (BIAC) to the OECD and the U.S. Council for International Business, the United States Advisory Board of NTT DoCoMo, Inc. and the Board of Directors of Triton Oil & Gas Limited.
Mr. Williamson has served on the Boards of Regents and Trustees of the University of the South and as chair of the Board of Regents. He is currently a member of the Board of Directors of the American Council of Trustees and Alumni, a higher education watchdog.
General Counsel, Department of the Army
Mr. Benedict S. Cohen was appointed by President Bush to serve as the General Counsel for the Department of the Army effective on August 4, 2006. Mr. Cohen has twenty years of experience in high-level positions across the federal government, with a principal focus on national security and foreign policy. Prior to his current position, he served as the Managing Executive for Policy and Counselor to Chairman Cox at the U.S. Securities and Exchange Commission, where he focused on legal and policy issues facing the agency and enhancing the Commission’s crisis-management and homeland-security capabilities. Prior to taking this position, he served as staff director of the Committee on Homeland Security of the U.S. House of Representatives, where he managed the transition from select committee to full standing committee status and the passage of authorization legislation for the Department of Homeland Security and of legislation reforming DHS’ homeland security grant program.
Mr. Cohen has also served as Deputy General Counsel (Environment & Installations) for the Defense Department, in which capacity he spearheaded DoD’s Readiness and Range Preservation Initiative, a multifaceted legislative, regulatory, and resource-management program to ensure sustainability of the military’s test and training capabilities and foster better environmental stewardship. He also provided legal support for DoD’s installation initiatives, and served as a principal spokesman for the Department on environmental and installations issues. He has also served in senior positions in the White House Counsel’s Office, the congressional leadership staff, and the Department of Justice, as well as serving in two law firms.
Mr. Cohen graduated from Yale magna cum laude in 1980 with a B.A. in history, and from the University of Chicago Law School in 1983, having served as an Associate Editor of the Law Review. He clerked for Judge Laurence H. Silberman of the U.S. Court of Appeals for the D.C. Circuit. He lives in American University Park in Washington, D.C. His wife is an attorney in private practice. He has two children, aged eight and ten.
Separation of Powers and Foreign Policy
Walter E. Dellinger, Benedict S. Cohen, Louis Fisher, Abraham D. Sofaer, John C. Yoo, Edwin D. Williamson
Federalism & Separation of Powers Practice Group Newsletter - Volume 3, Issue 3, Winter 2000
Following are excerpts from a panel discussion entitled "Separation of Powers and Foreign Policy" which...
Separation of Powers and Federalism in the 104th Congress
Benedict S. Cohen
Federalism & Separation of Powers Practice Group Newsletter - Volume 1, Issue 1, Fall 1996
In the fields of separation of powers and federalism the 104th Congress revisited old issues...