Argüello was born in Córdoba in 1956 as the first of four children by Jorge Marcelo Argüello Varela and Raquel Luque Colombres. He graduated from Rochester Community High School, Rochester, Indiana, in 1974, and returned to Argentina, where he enrolled at the University of Buenos Aires and earned a Law degree in 1985. He later earned a master's degree in Administration and Public Affairs at the University of San Andrés, and authored numerous articles and books on democratic participation. Argüello married lawyer Marcela Millán, divorced and then remarried with journalist Erika Grinberg, and has a son and three daughters. He entered public service upon his election in 1987 to the Buenos Aires City Council, and served in the Argentine Chamber of Deputies between 1991 and 1995. Argüello served as host organizer in 1994 of the first official visit to Argentina of a British Parliamentary delegation since the Falklands War twelve years earlier, and later represented Latin America countries in the 1994-95 meeting of the Parliamentarians for Global Action. In 1996, he was elected in the convention of Buenos Aires City called in 1996 to write the Constitution of the City of Buenos Aires. Between 1997 and 2003 he served as deputy of the newly established Buenos Aires City Legislature in two successive periods. In 2003, Argüello was again elected to the Chamber of Deputies and he became Chairman of the Foreign Relations Committee, and in that capacity organized the office of the Parliamentary Monitor for the Falkland Islands. In 2007, he was appointed by President Nestor Kirchner as Permanent Representative of Argentina to the United Nations. In that capacity Argüello served as Vice President of the Peace and Security Committee of Inter-Parliamentary Union in 2006 and 2007. He was Chairman of the UN Special Committee on Decolonization in 2008, and president of the Group of 77 and China for their 2011 session. In November 2011, Arguello was designated as Ambassador of Argentina to the United States, and his credentials were formally accepted on December 1. In March 2013, was designated as Ambassador of Argentina to Portugal.
International work
• Inter-Parliamentary Union : Vice-President of the First Standing Committee on Peace and International Security Inter-Parliamentary Union • Member of the Commission negotiating the External Debt of the Autonomous City of Buenos Aires • Organizer of the first visit after the British Parliamentary conflict Falkland Islands • President of "Parliamentarians for Global Action" on behalf of the Latin American countries • Chairman of the Twinning Buenos Aires - Tel Aviv • Honors and awards received various international
Academic work
• Georgetown University : Member of the Class Advisory Board School of Foreign Service. • University of Belgrano. Member of the Academic Council of the School of Government. Professor of the Chair of the Parliamentary Operation School of Public Officers. Professor of the Chair of Technical Trading Course in Political Science from the Faculty of Law and Social Sciences. 1998 - 2003. • Author of several opinion articles published in national and international media, author, co-author and compiler of books on political participation and citizenship.
