Mark Udall
Democratic
1,230,994
52.8%
Winner
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U.S. SenateColoradoCertified
Colorado U.S. Senate
General election · November 4, 2008
- Incumbent
- Not identified
- Seat
- U.S. Senate
- Race rating
- No published consensus
- Last updated
- Sep 7, 2026
Candidates and results
Margin: 240,239 votes (10.3 points)
Bob Schaffer
Republican
990,755
42.5%
Douglas Dayhorse Campbell
American Constitution
59,733
2.6%
Bob Kinsey
Green
50,004
2.1%
Imported from MIT Election Lab.
Election results in Worldview are entered by hand or bulk-imported from public sources: MIT Election Lab for returns, U.S. Census for boundaries.