In 1918, Wisconsin held a special election to fill the seat of recently deceased Senator Paul Husting, who had been elected in 1914. The election was a three-way race between Democrat Joseph E. Davies, Republican Irvine L. Lenroot, and Socialist Victor L. Berger. Running under federal indictment, Berger placed third. He won 26% of the vote statewide in the April Senate election, winning 11 counties.
Victor Berger, one of the “Sewer Socialists,” became the first Socialist to serve in the United States House of Representatives, winning the election in Wisconsin’s 5th congressional district in 1910.