Special primary election to fill the vacancy caused by the death of Republican U.S. Senator Knute Nelson on April 28, 1923.
Preus was an attorney from Minneapolis, former state Insurance Commissioner (1911-1915), former state Auditor (1915-1921), and sitting Governor (1921-1925).
Hallam was an attorney from St. Paul, former Second Judicial District Judge, and former Associate Justice of the Supreme Court (1913-1923). Hallam was also a Republican candidate for U.S. Senate in 1924.
Schall was an attorney from Excelsior and Progressive-turned-Republican U.S. Representative (CD 10, 1915-1925).
Anderson was an attorney from Lanesboro and U.S. Representative (CD 01, 1911-1925).
Power was an attorney and the Mayor of Hibbing (1913-1922, 1923-1924).
Burnquist was a resident of St. Paul, former state Representative (HD 33, 1909-1913), Lieutenant Governor (1913-1915), and Governor (1915-1921).
Lundeen was an attorney from Minneapolis, former state Representative (HD 42, 1911-1915), former U.S. Representative (CD 05, 1917-1919), and candidate for U.S. Senate in 1922. Lundeen ran for the U.S. House multiple times and would later serve two more terms as a Farmer-Laborite (AL, 1933-1935; CD 03, 1935-1937) before getting elected to the U.S. Senate (1937-1940). He was also a candidate for Chief Justice of the Supreme Court in 1924.
Steenerson was a resident of Crookson, former Polk County prosecuting attorney (1881-1883), former city attorney of Crookson, former state Senator (SD 45, 1883-1887), and former U.S. Representative (CD 09, 1903-1923).
Martin was an attorney from Minneapolis.