1903 United States Senate election in Wisconsin
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| Elections in Wisconsin |
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The 1903 United States Senate election in Wisconsin was held in the 46th Wisconsin Legislature on January 28, 1903. Incumbent Republican U.S. senator John Coit Spooner was re-elected on the first ballot.
In the 1903 term, Republicans held overwhelming majorities in both chambers of the Wisconsin Legislature, so had more than enough votes to elect a Republican United States senator.