2018 Wisconsin U.S. Senate Election

Wisconsin · 2 candidates · See every 2018 U.S. Senate race

Who won the 2018 Wisconsin U.S. Senate Election?

Tammy Baldwin won the 2018 Wisconsin U.S. Senate Election. Tammy Baldwin received 1,472,914 popular votes (55.42%). The main challenger was Leah Vukmir (44.58%).

See the full head-to-head between Baldwin and Vukmir

Baldwin +10.8 pts · won by 288,029 votes

Tammy Baldwin DemocraticWINNER55.42%

1,472,914 votes

Leah Vukmir Republican44.58%

1,184,885 votes

Popular-vote totals for U.S. Senate elections come from the MIT Election Data and Science Lab (1976–2024).

Data last verified July 28, 2026.