The 1923 United States Senate special election in Minnesota took place on July 16, 1923. The election was held to fill, for the remainder of the unexpired term, the seat in the United States Senate left vacant by Republican U.S. Senator Knute Nelson, who died in office on April 28, 1923. State Senator Magnus Johnson of the Farmer–Labor Party of Minnesota defeated Governor J. A. O. Preus of the Republican Party of Minnesota, and State Senator James A. Carley of the Minnesota Democratic Party, which, together with Henrik Shipstead's victory in 1922, brought both of Minnesota's seats in the United States Senate into the hands of the Farmer–Labor Party for the first time in history.
United States Senate special election in Minnesota, 1923
Johnson's victory marked the first time, since Morton S. Wilkinson took office in 1859, that neither of Minnesota's seats in the United States Senate were held by a Republican. It also marked the first time, since Wilkinson's assumption of the office, that the person holding Minnesota's Class 2 U.S. Senate seat was not a Republican, and Johnson became just the second non-Republican to ever hold that seat (the first being the Democrat James Shields, whose term of office ended when Wilkinson's began).