2018 Idaho Senate election
November 6, 2018
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All 35 seats in the Idaho Senate 18 seats needed for a majority | ||||||||||||||||||||||||||||||||||
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| Elections in Idaho |
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The 2018 Idaho Senate election was held on November 6, 2018, to determine which party would control the Idaho Senate for the following two years in the 65th Idaho Legislature. All 35 seats in the Idaho Senate were up for election and the primary was held on May 15, 2018. Prior to the election, 29 seats were held by Republicans and 6 seats were held by Democrats. The general election saw Democrats flip a single seat, thereby meaning that Republicans retained their majority in the State Senate.[1][2]
Predictions
| Source | Ranking | As of |
|---|---|---|
| Governing[3] | Safe R | October 8, 2018 |
Retirements
Republicans
- District 1: Shawn Keough retired.
- District 3: Bob Nonini retired.
- District 14: Marv Hagedorn retired.
- District 35: Jeff Siddoway retired.
Incumbents defeated
In primary
Republicans
- District 33: Tony Potts lost renomination to Dave Lent.
In general
Republicans
- District 5: Dan Foreman lost re-election to David Nelson.
Closest races
Seats where the margin of victory was under 10%:
- District 15, 0.04%
Results
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Jim Woodward | 14,831 | 74.32% | |
| Democratic | Vera Gadman | 5,125 | 25.68% | |
| Total votes | 19,956 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Steve Vick (incumbent) | 15,109 | 72.88% | |
| Democratic | Dale Broadsword | 5,131 | 24.75% | |
| Libertarian | Shon Luoma | 491 | 2.37% | |
| Total votes | 20,731 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Don Cheatham | 12,226 | 72.20% | |
| Democratic | Patrick Lippert | 4,707 | 27.80% | |
| Total votes | 16,933 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Mary Souza (incumbent) | 10,579 | 57.72% | |
| Democratic | Cory Jane English | 7,749 | 42.28% | |
| Total votes | 18,328 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | David Nelson | 11,197 | 56.06% | |
| Republican | Dan Foreman (incumbent) | 8,777 | 43.94% | |
| Total votes | 19,974 | 100.0% | ||
| Democratic gain from Republican | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Dan G. Johnson (incumbent) | 13,353 | 100.0% | |
| Total votes | 13,353 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Carl Crabtree (incumbent) | 13,936 | 100.0% | |
| Total votes | 13,936 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Steven Thayn (incumbent) | 14,128 | 70.98% | |
| Independent | Bill Sifford | 4,510 | 22.66% | |
| Constitution | Kirsten Faith Richardson | 1,265 | 6.36% | |
| Total votes | 19,903 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Abby Lee (incumbent) | 13,849 | 100.0% | |
| Total votes | 13,849 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Jim Rice (incumbent) | 7,526 | 61.46% | |
| Democratic | Evangeline Beechler | 4,720 | 38.54% | |
| Total votes | 12,246 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Patti Anne Lodge (incumbent) | 13,834 | 77.79% | |
| Democratic | Edward Savala | 3,949 | 22.21% | |
| Total votes | 17,783 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Todd Lakey (incumbent) | 9,089 | 65.09% | |
| Democratic | Chelle Gluch | 4,875 | 34.91% | |
| Total votes | 13,964 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Jeff Agenbroad (incumbent) | 12,550 | 100.0% | |
| Total votes | 12,550 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | C. Scott Grow | 18,893 | 69.56% | |
| Democratic | Richard Boozel | 8,268 | 30.44% | |
| Total votes | 27,161 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Fred S. Martin (incumbent) | 8,948 | 50.02% | |
| Democratic | Jim Bratnober | 8,942 | 49.98% | |
| Total votes | 17,890 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Grant Burgoyne (incumbent) | 12,784 | 65.21% | |
| Republican | LeeJoe Lay | 6,819 | 34.79% | |
| Total votes | 19,603 | 100.0% | ||
| Democratic hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Maryanne Jordan (incumbent) | 11,652 | 69.68% | |
| Republican | David DeHaas | 5,069 | 30.32% | |
| Total votes | 16,721 | 100.0% | ||
| Democratic hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Janie Ward-Engelking (incumbent) | 17,090 | 100.0% | |
| Total votes | 17,090 | 100.0% | ||
| Democratic hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Cherie Buckner-Webb (incumbent) | 18,793 | 74.59% | |
| Republican | Aaron Tribble | 6,401 | 25.41% | |
| Total votes | 25,194 | 100.0% | ||
| Democratic hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Chuck Winder (incumbent) | 14,535 | 100.0% | |
| Total votes | 14,535 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Clifford Bayer (incumbent) | 12,275 | 57.80% | |
| Democratic | Dawn Pierce | 7,776 | 36.61% | |
| Libertarian | Joe Evans | 1,187 | 5.59% | |
| Total votes | 21,238 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Lori Den Hartog (incumbent) | 10,709 | 69.36% | |
| Democratic | Mik Lose | 4,731 | 30.64% | |
| Total votes | 15,440 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Bert Brackett (incumbent) | 10,492 | 100.0% | |
| Total votes | 10,492 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Lee Heider (incumbent) | 10,547 | 100.0% | |
| Total votes | 10,547 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | James Patrick (incumbent) | 11,969 | 100.0% | |
| Total votes | 11,969 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Michelle Stennett (incumbent) | 10,094 | 59.86% | |
| Republican | Julie Lynn | 6,768 | 40.14% | |
| Total votes | 16,862 | 100.0% | ||
| Democratic hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Kelly Anthon (incumbent) | 10,291 | 100.0% | |
| Total votes | 10,291 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Jim Guthrie (incumbent) | 10,174 | 61.88% | |
| Democratic | Mike Saville | 6,268 | 38.12% | |
| Total votes | 16,442 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Mark Nye (incumbent) | 8,338 | 57.85% | |
| Republican | Lance B. Kolbet | 6,074 | 42.15% | |
| Total votes | 14,412 | 100.0% | ||
| Democratic hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Dean Mortimer (incumbent) | 12,838 | 100.0% | |
| Total votes | 12,838 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Steve Bair (incumbent) | 11,084 | 100.0% | |
| Total votes | 11,084 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Mark Harris (incumbent) | 13,347 | 100.0% | |
| Total votes | 13,347 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Dave Lent | 7,899 | 59.49% | |
| Democratic | Jerry Sehlke | 5,379 | 40.51% | |
| Total votes | 13,278 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Brent Hill (incumbent) | 9,500 | 83.64% | |
| Democratic | Robert Nielsen | 1,858 | 16.36% | |
| Total votes | 11,358 | 100.0% | ||
| Republican hold | ||||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Van Burtenshaw | 13,123 | 100.0% | |
| Total votes | 13,123 | 100.0% | ||
| Republican hold | ||||
References
- ^ "Idaho State Senate elections, 2018". ballotpedia.org. Retrieved December 15, 2025.
- ^ "Legislative Totals". sos.idaho.gov. Retrieved December 15, 2025.
- ^ Jacobson, Louis (October 8, 2018). "A Month Before Election Day, Democrats Poised for Legislative Gains". Governing. Retrieved December 15, 2025.