Frank James (Jim) Sensenbrenner, Jr. (born June 14, 1943) is an American politician who has been a member of the Republican Party in the United States House of Representatives since 1979, representing Wisconsin's 5th congressional district (map). The district, the state's richest, includes most of Milwaukee's suburbs, including Waukesha, West Bend, Brookfield, Delafield, Mequon, New Berlin, Menomonee Falls and Wauwatosa. It was numbered as the 9th District until 2003. He has been a strong proponent of the Bush Administration's War on Terror.
He is the former Chairman of the House Science Committee and the former Chairman of the House Judiciary Committee; when the Republicans lost control of the House, he finished his six-year term as Chairman, and was not able to be chosen as the Judiciary Committee's ranking minority member (that honor went to Lamar S. Smith of Texas). He is currently the Ranking Republican on the House Select Committee for Energy Independence and Global Warming.
Sensenbrenner was born in Chicago, Illinois, into a wealthy family. He was raised in Shorewood, Wisconsin, and attended the private Milwaukee Country Day School, from which he graduated in 1961. He matriculated at Stanford University and graduated with a B.A. in Political Science in 1965. He received his Juris Doctor degree from the University of Wisconsin Law School in 1968.