2026 Idaho Senate election

Not to be confused with 2026 United States Senate election in Idaho.

2026 Idaho State Senate election

← 2024 November 3, 2026 (2026-11-03) 2028 →
All 35 seats in the Idaho Senate 18 seats needed for a majority
Leader Lori Den Hartog Melissa Wintrow Party Republican Democratic Leader's seat 22nd 19th Current seats 29 6
Legend:      Democratic incumbent      Republican incumbent
Incumbent Majority Leader Lori Den Hartog Republican

The 2026 Idaho Senate election will be held on November 3, 2026, alongside the Idaho House of Representatives election and the other 2026 United States elections.^[1] Voters will elect members of the Idaho State Senate in all 35 of the U.S. state of Idaho's legislative districts to serve a two-year term.^[2]

Retirements

Democrats

1. District 16: Alison Rabe is retiring.^[3]

Incumbents defeated

In primary elections

Republicans

1. District 1: Jim Woodward lost renomination to Scott Herndon.^[4]
2. District 24: Glenneda Zuiderveld lost renomination to Bret Reinke.^[4]
3. District 25: Josh Kohl lost renomination to Casey Swensen.^[4]

Predictions

Source	Ranking	As of
Sabato's Crystal Ball[5]	Safe R	January 22, 2026

Results summary

Summary of the November 8, 2026 Idaho Senate election results

Party		Candidates	Votes		Seats
			No.	%	Before	Up	Won	After	+/–
	Republican	34		%	29	29
	Democratic	33		%	6	6
	Independent	3		%	0	0
	Constitution	2		%	0	0
Total				100.00%	35	35
Source: [ Idaho Elections Results]

Summary of results by district

District	Incumbent	Party		Elected Senator	Outcome
1st	Jim Woodward		Rep	TBD
2nd	Phil Hart		Rep	TBD
3rd	Doug Okuniewicz		Rep	TBD
4th	Ben Toews		Rep	TBD
5th	Carl Bjerke		Rep	TBD
6th	Dan Foreman		Rep	TBD
7th	Cindy Carlson		Rep	TBD
8th	Christy Zito		Rep	TBD
9th	Brandon Shippy		Rep	TBD
10th	Tammy Nichols		Rep	TBD
11th	Camille Blaylock		Rep	TBD
12th	Ben Adams		Rep	TBD
13th	Brian Lenney		Rep	TBD
14th	C. Scott Grow		Rep	TBD
15th	Codi Galloway		Rep	TBD
16th	Alison Rabe		Dem	TBD
17th	Carrie Semmelroth		Dem	TBD
18th	Janie Ward-Engelking		Dem	Janie Ward-Engelking		Dem
19th	Melissa Wintrow		Dem	TBD
20th	Josh Keyser		Rep	TBD
21st	Treg Bernt		Rep	TBD
22nd	Lori Den Hartog		Rep	TBD
23rd	Todd Lakey		Rep	TBD
24th	Glenneda Zuiderveld		Rep	TBD
25th	Josh Kohl		Rep	TBD
26th	Ron Taylor		Dem	TBD
27th	Kelly Anthon		Rep	TBD
28th	Jim Guthrie		Rep	TBD
29th	James Ruchti		Dem	TBD
30th	Julie VanOrden		Rep	TBD
31st	Van Burtenshaw		Rep	TBD
32nd	Kevin Cook		Rep	TBD
33rd	Dave Lent		Rep	TBD
34th	Doug Ricks		Rep	TBD
35th	Mark Harris		Rep	TBD

References

1. Booker, Brakkton (2025-07-29). "The 2026 midterms are officially underway". POLITICO. Retrieved 2025-08-07.
2. "Idaho State Senate elections, 2026". Ballotpedia. Retrieved 2025-08-09.
3. Dolan, Sean (February 6, 2026). "Sen. Ali Rabe not seeking re-election, Rep. Galaviz to run for her seat". Idaho Education News. Retrieved May 20, 2026.
4. Pfannenstiel, Kyle (May 20, 2026). "Nine Idaho Republican lawmakers lose primary election, including some who pushed for budget cuts". Idaho Capital Sun. Retrieved May 20, 2026.
5. Jacobson, Louis (January 22, 2026). "Handicapping The 2026 State Legislative Map: A First Look". Sabato's Crystal Ball. Retrieved January 22, 2026.