1990Final results
1990 election for U.S. Senate in Idaho
U.S. Senate · Idaho
Larry Craig (R) won with 61.3% of the vote, defeating Ron J. Twilegar (D) by 22.6 points.
Larry CraigRepublican · winner
61.3%193,641
Ron J. TwilegarDemocrat
38.7%122,295
315,936 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 1990
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.
Ron J. TwilegarLarry Craig
$545.2K
Raised by the campaign
$1.7M
$545.1K
Spent by the campaign
$1.7M
$96
Cash on hand
$91.8K
Campaign money: FEC, through Dec 31, 1990.
Source: FEC campaign filingsUpdated Dec 31, 1990