1998Flipped from DemocraticFinal results
1998 election for U.S. Senate in Colorado
U.S. Senate · Colorado
Ben Campbell (R) won with 62.5% of the vote, defeating Dottie Lamm (D) by 27.5 points, a seat Democrats won last time.
Ben CampbellRepublican · winner
62.5%829,370
Dottie LammDemocrat
35.0%464,754
David S. SegalLibertarian
1.1%14,024
Kevin SwansonConstitution
0.7%9,775
Jeffrey PeckmanNatural Law
0.3%4,101
John HeckmanOther party
0.2%3,230
Gary SwingOther party
0.1%1,981
1,327,235 votes
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
The seat over time
D − R margin in this seat's races around 1998
Races before and after
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Dottie LammBen Campbell
$1.8M
Raised by the campaign
$3.2M
$1.8M
Spent by the campaign
$3.1M
$7.8K
Cash on hand
$271.5K
Other candidates' campaigns: Kevin Swanson $13.2K · Gary Swing $145.
Campaign money: FEC, through Dec 31, 1998.
Source: FEC campaign filingsUpdated Dec 31, 1998
The candidates
Ben Campbell (R)Dottie Lamm (D)
Also on the ballot: David S. Segal (Libertarian), 1.1%; Kevin Swanson (Constitution), 0.7%; Jeffrey Peckman (Natural Law), 0.3%; John Heckman (Other party), 0.2%; Gary Swing (Other party), 0.1%