Mark Lofgren is a Republican member of the Iowa Senate representing District 48, having taken office in his current seat on January 3, 2023. Born June 26, 1961, in Muscatine, he attended the University of Iowa. He previously served in the Iowa House of Representatives from 2011 to 2015 before an unsuccessful bid for the Republican nomination for Iowa's 2nd congressional district, and was elected to the Iowa Senate's 46th district in 2016, defeating incumbent Democratic Senator Chris Brase.