Steven Henning "Steve" Warnstadt (born August 2, 1967) was the Iowa State Senator from the 1st District. A Democrat, he served in the Iowa Senate from 2003 until 2011. He received his BA from Drake University and his MA from Temple University. He is serving as an adjunct instructor with Western Iowa Tech Community College and as an intelligence officer with the Iowa Army National Guard.
Warnstadt served on several committees in the Iowa Senate: the Appropriations committee, the Judiciary committee, the Transportation committee, the Veterans Affairs committee, (where he was vice chair), and the Commerce committee (where he is chair). He also served as vice chair of the Transportation, Infrastructure, and Capitals Appropriations Subcommittee. His prior political experience includes serving as a representative in the Iowa House from 1995 to 2003, as well as being a member of the Woodbury County Democratic Central Committee in 1996, and serving as president of the Drake College Democrats from 1987 to 1988.