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2004 Illinois U.S. Senate Election

Illinois · 4 candidates · See every 2004 U.S. Senate race

Who won the 2004 Illinois U.S. Senate Election?

Barack Obama won the 2004 Illinois U.S. Senate Election. Barack Obama received 3,597,456 popular votes (69.97%). The main challenger was Alan L. Keyes (27.05%).

See the full head-to-head between Obama and Keyes

Obama +42.9 pts · won by 2,206,766 votes
Barack ObamaDemocraticWINNER69.97%
3,597,456 votes
Alan L. KeyesRepublican27.05%
1,390,690 votes
Albert J. FranzenIndependent1.58%
81,164 votes
Jerry KohnLibertarian1.35%
69,253 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.