Elections / 1998 · Senate · CO
The Republican candidate won Colorado's Senate seat R+27.5.
Colorado, 1998. Party-level statewide totals below — candidate names join when the raw MEDSL store is re-fetched with name columns.
Colorado — 1998 Senate result
Source: MIT Election Data + Science Lab, 1976–2024 Senate returns (party-classified by literal ballot party).
Democratic (D)
464,754
35.0%
Republican (R)
829,370
62.5%
All others
33,111
2.5%
Margin
R+27.5
Colorado's Senate margins
Every contest in our store, 1978–2022
| Year | Margin (D minus R) |
|---|---|
| 1978 | −18.4% |
| 1980 | +1.6% |
| 1984 | −29.6% |
| 1986 | +1.6% |
| 1990 | −14.0% |
| 1992 | +9.1% |
| 1996 | −5.7% |
| 1998 | −27.5% |
| 2002 | −4.9% |
| 2004 | +4.8% |
| 2008 | +10.3% |
| 2010 | +1.6% |
| 2014 | −1.9% |
| 2016 | +5.7% |
| 2020 | +9.3% |
| 2022 | +14.6% |