Stephen Geoffrey Rademaker (born 1959) is an American attorney, lobbyist, and former high-ranking U.S. government official with extensive experience in national security and foreign policy. His career in public service began during the administration of President George H. W. Bush, where he served as General Counsel of the Peace Corps, Associate Counsel to the President in the White House Counsel's Office, and Deputy Legal Adviser to the National Security Council. Rademaker's expertise in arms control and non-proliferation led to his appointment as Assistant Secretary of State for Arms Control and Non-Proliferation from 2002 to 2006 under President George W. Bush. He also held significant roles on Capitol Hill, including Chief of Staff to the House International Relations Committee, Chief Counsel to the House Committee on Homeland Security, and Senior Counsel and Policy Director for National Security Affairs for Senate Majority Leader Bill Frist (R-TN) until 2007. Following his government service, Rademaker transitioned to the private sector and academia. He currently serves as Senior of Counsel at the Washington, D.C.-based law firm Covington & Burling LLP, where he advises on global policy issues, including U.S. sanctions, national security, sanctions policy, and international law. Additionally, he is an Adjunct Professor at Georgetown University, teaching graduate-level courses on U.S. sanctions policy. As a lobbyist, Rademaker has represented various clients in industries related to defense and foreign policy, with specific lobbying disclosures indicating concentrations in sectors like aerospace and national security. Rademaker is married to Danielle Pletka, a prominent foreign policy expert and vice president at the American Enterprise Institute. His work has focused on influencing networks in national security, international relations, and lobbying for policy-related clients, and has been associated with Republican administrations and conservative national security perspectives, emphasizing strong U.S. leadership in arms control and counter-proliferation efforts. No major legal controversies or personal scandals are documented in public records.