A Republican, he has served in the Iowa House of Representatives since 2013. As of January 2013, Gassman serves on several committees in the Iowa House – the Education, Environmental Protection, Judiciary, and Local Government committees. He also serves as the vice chair of the Administration and Regulation Appropriations Subcommittee.
Born in Valentine, Nebraska, Tedd grew up in Todd County, South Dakota and graduated from Todd County High School in 1961.
Graduated from Southern State Teachers College in Springfield, South Dakota with a Bachelor of Science in Engineering with a major in math and a minor in physics in 1965. Tedd taught school until 1975 and has been in business for himself since that time.