Gerry Connolly attended until 1971 the Maryknoll College in Illinois and then studied until 1979 at Harvard University. Between 1979 and 1989 he worked for the Foreign Affairs Committee of the U.S. Senate. He also worked in the technology industry and director of a non-profit organization. Politically, he joined the Democratic Party. Between 1995 and 2003 he sat in the County Council of Fairfax County, Virginia; from 2004 to 2008 he was head of this body.
In the congressional elections of 2008, Connolly was in the eleventh electoral district of Virginia in the U.S. House of Representatives in Washington DC chosen, where he succeeded the meantime resigned Thomas M. Davis on January 3, 2009. According to previously re-election, he can exercise his mandate in Congress today. There he heard the Foreign Affairs Committee and the Committee on Oversight and Government Reform on. He is also a member of four sub- committees and the Congressional Arts Caucus.