2004Final results
2004 election for Idaho Legislative District 23
Idaho State Senate · Idaho
Tom Gannon (R) won with 64.9% of the vote, defeating William Chisholm (D) by 29.9 points.
Tom GannonRepublican · winner · incumbent
64.9%9,116
William ChisholmDemocrat
35.1%4,920
14,036 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 2004
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET