Charles Ernest "Chuck" Grassley (born September 17, 1933) is the senior United States Senator from Iowa, serving since 1981. A member of the Republican Party, he previously served in the United States House of Representatives (1975–1981) and the Iowa state legislature (1959–1974). He was chairman of the Senate Finance Committee from January to June 2001 and from January 2003 to December 2006. Senator Grassley is the current chairman of the Judiciary Committee of the 114th congress.