Special election on July 16, 1923 for the unexpired term ending March 3, 1925 to fill the vacancy caused by the death of Republican Knute Nelson on April 28, 1923.
Johnson was a resident of Kimball, a former state Representative (HD 26, 1915-1919), and sitting state Senator (SD 26, 1919-1923). Johnson was the Farmer-Laborite guberntorial nominee in 1926, won election to an at-large U.S. House seat (1933-1935), and sought the Farmer-Labor gubernatorial nomination in 1936.
Preus was an attorney from Minneapolis, former state Insurance Commissioner (1911-1915), former state Auditor (1915-1921), and sitting Governor (1921-1925).
Carley was an attorney from Plainview, former Democratic state Representative (HD 03, 1909-1911), and sitting state Senator (SD 03, 1915-1931, 1935-1952).