2008Final results
2008 election for U.S. Senate in Idaho
U.S. Senate · Idaho
Jim Risch (R) won with 57.7% of the vote, defeating Larry LaRocco (D) by 23.5 points.
Jim RischRepublican · winner
57.7%371,744
Larry LaRoccoDemocrat
34.1%219,903
Rex RammellIndependent
5.4%34,510
Kent MarmonLibertarian
1.5%9,958
Pro-LifeIndependent
1.3%8,662
644,780 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 2008
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.
Larry LaRoccoJim Risch
$1.4M
Raised by the campaign
$3.6M
$1.4M
Spent by the campaign
$3.6M
$3.1K
Cash on hand
$21.6K
Other candidates' campaigns: Rex Rammell $439.4K · Pro-Life $20.5K.
Campaign money: FEC, through Dec 31, 2008.
Source: FEC campaign filingsUpdated Dec 31, 2008
The candidates
Jim Risch (R)Larry LaRocco (D)Rex Rammell (I)
Also on the ballot: Kent Marmon (Libertarian), 1.5%; Pro-Life (Independent), 1.3%