PolitiFinder

2016 Illinois U.S. Senate Election

Illinois · 4 candidates · See every 2016 U.S. Senate race

Who won the 2016 Illinois U.S. Senate Election?

Tammy Duckworth won the 2016 Illinois U.S. Senate Election. Tammy Duckworth received 3,012,940 popular votes (54.86%). The main challenger was Mark Steven Kirk (39.78%).

See the full head-to-head between Duckworth and Kirk

Duckworth +15.1 pts · won by 828,248 votes
Tammy DuckworthDemocraticWINNER54.86%
3,012,940 votes
Mark Steven KirkRepublican39.78%
2,184,692 votes
Kenton McMillenLibertarian3.2%
175,988 votes
Scott SummersGreen2.14%
117,619 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.