1984Final results
1984 election for U.S. Senate in Colorado
U.S. Senate · Colorado
William Armstrong (R) won with 64.2% of the vote, defeating Nancy Dick (D) by 29.6 points.
William ArmstrongRepublican · winner
64.2%833,821
Nancy DickDemocrat
34.6%449,327
Craig GreenLibertarian
0.9%11,077
David MartinSocialist Workers
0.2%2,208
Earl HiggersonOther party
0.1%1,376
1,297,809 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 1984
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.
Nancy DickWilliam Armstrong
$960.1K
Raised by the campaign
$3.1M
$972K
Spent by the campaign
$3M
$726
Cash on hand
$175.9K
Campaign money: FEC, through Dec 31, 1984.
Source: FEC campaign filingsUpdated Dec 31, 1984
The candidates
William Armstrong (R)Nancy Dick (D)
Also on the ballot: Craig Green (Libertarian), 0.9%; David Martin (Socialist Workers), 0.2%; Earl Higgerson (Other party), 0.1%