The commissioner, Louis Klemp of Leavenworth County, made the remark on Tuesday while criticizing the options for developing land that were being presented by Triveece Penelton, who works for an architecture and design company.

According to a video recording of the meeting, Mr. Klemp said to Ms. Penelton: “I don’t want you to think I’m picking on you because we’re part of the master race. You know you’ve got a gap in your teeth. You’re the master race. Don’t ever forget that.”

After local news media reported on the comments, officials, including the two other county commissioners, called on him to resign, The Kansas City Star reported. On Saturday, Gov. Jeff Colyer, a Republican, added his name to the list, saying in a statement that “racial and discriminative language have no place in our society, and most especially when spoken by someone holding a public office.”