Pennsylvania's twentieth congressional district was a congressional district in southwestern Pennsylvania. It was created following the 1830 Census and was disbanded after the 2000 Census removed two representatives from Pennsylvania. The 18th district is generally considered to be its successor, although the 12th district contains some of its territory.
Recent electoral history
Source: "Election Statistics". Office of the Clerk of the House of Representatives. Retrieved 2007-08-08.
References
Pennsylvania's 20th congressional district Wikipedia(Text) CC BY-SA