Daniel David Rostenkowski (January 2, 1928 – August 11, 2010) was an American politician. He was a United States Representative from Chicago, serving from 1959 to 1995. He became one of the most powerful legislators in Washington, especially in matters of taxation, until he went to prison. A Democrat, Rostenkowski was for many years Democratic Committeeman of Chicago's 32nd Ward, retaining this position even while serving in Congress.