Daniel has served as Director of Multilateral and Humanitarian Affairs at the National Security Council in the Clinton Administration, and as Counsel and Communications Adviser to the U.S. Senate Homeland Security and Governmental Affairs Committee, on the staff of Sen. Joseph Lieberman. In his White House post he advised the National Security Advisor and the President on issues related to war crimes and accountability, the United Nations, global democracy promotion, international public law, and economic sanctions policy, and orchestrated the negotiation and President Clinton’s signature of the International Criminal Court Treaty and the U.N. Optional Protocol on the Use of Child Soldiers (1999-2000). His responsibilities in Congress included advising Senator Lieberman and the Committee on national security issues, and organizing hearings and drafting legislation regarding homeland security, foreign policy, and environmental matters (2001-2002). Daniel has been selected as a participant for a number of "next generation" programs identifying emerging foreign policy leaders, including those organized by the Asia Society (2007), the American Assembly's "Next Generation Project" (2007), the Rockefeller Brothers Fund's “U.S. in the World Task Force” (2006), the British American Project (2005), the German Marshall Fund's “Emerging Leaders Forum” (2003), the French-American Foundation's “Young Leaders Program” (2001, 2002), and the Salzburg Seminar's “International Human Rights” forum (2001). He formerly was also a Term Member of the Council on Foreign Relations. Daniel founded, and continues to lead, a number of groups devoted to identifying, promoting, and organizing the “next generation” of Democrats engaged in foreign policy issues, including “Next Generation Democrats” and the "National Security Network" (as a board member along with Rand Beers, Amb. Dick Holbrooke, and others). He has held high-level posts with Democratic Party leaders, including as Deputy Press Secretary for Senator Lieberman on the 2000 Gore-Lieberman campaign in Nashville, TN, and on the Gore-Lieberman legal recount team in Tallahassee, FL (2000), as Senior Foreign Policy and National Security Advisor to Senator John Kerry in the 2004 presidential campaign, and most recently as Chief Foreign Policy and National Security Advisor for the potential presidential, Senatorial or gubernatorial campaigns former Virginia Gov. Mark Warner (D-VA). Apart from his public service before joining Foley Hoag, Daniel was associated with two prominent national law firms. His practice emphasized the development of infrastructure projects and privatizations, with particular focus on energy matters in Latin America and Asia, and on issues of international political risk insurance. He also worked in Africa and Asia on human rights and democratization issues. That activity included conducting research on political and economic transition issues in Hong Kong, in anticipation of its handover to Chinese control in 1997, and drafting legislation for members of Hong Kong’s Legislative Council (1995-1996). Daniel worked in South Africa for the Constitutional Drafting Committee of the African National Congress (1991), and as a journalist covering labor and human rights issues for Business Day Newspaper (1990). In addition he has monitored elections in South Africa, Taiwan, Hong Kong, and Bosnia & Herzegovina.