 Terrance W. Gainer

Terrance William Gainer (born August 1, 1947) is a former law enforcement officer and was the 38th Sergeant at Arms of the United States Senate and served in that position from January 4, 2007 to May 2, 2014.Before Gainer continued his law enforcement career in Washington, D.C., he was the Republican candidate for Cook County State's Attorney in the 1988 election, losing to then incumbent Richard M. Daley.