Vicky Jo Hartzler (née Zellmer; October 13, 1960) is an American politician who has served as the U.S. Representative for Missouri's 4th congressional district since 2011. The district comprises a large swath of the western-central part of the state, anchored in Columbia to the eastern and southern Kansas City suburbs, including a small portion of Kansas City itself. The district also includes the cities of Sedalia, Warrensburg, Moberly, and Lebanon. The district takes in Ft. Leonard Wood in Pulaski County, Whiteman Air Force Base in Knob Noster, and the University of Missouri (Mizzou).
