Jeff Cornilles
Idaho State Representative, District 12 since 2024. Re-elected in 2026. Next on the ballot in 2028.
- In office
- 1 yr
- Since 2024
- Votes missed
- 3.5%
- Chamber median 1.8%
- With party
- 81%
- On votes splitting the parties
- Last margin
- +0.5
- Won 2026
- Next election
- 2028
- Nov 7, 2028
Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 1:51 PM ET
Committees
As of 2026-10.
- Local Government · vice chair
- Business
- Revenue and Taxation
Source: Open States committeesUpdated Oct 27, 2026, 9:43 AM ET
Voting record
Where Cornilles sits in the Idaho House of Representatives
Cornilles is closer to the center than 64% of the chamber's Republicans.
Closest: Steve Miller, Marco Erickson,
Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 4:49 PM ET
With Cornilles’s party
- Votes with the chamber's Republicans81%
Black tick: the average of Republicans in the Idaho House of Representatives.
Source: 99chambers legislative scores from roll calls and cosponsorships
Key votes
Votes chosen for their effect, not their side: Cornilles’s vote, each party’s majority, and the result. An orange vote differs from most Republicans.
| Date | Bill | Cornilles | Rep. majority | Dem. majority | Result |
|---|---|---|---|---|---|
| Apr 2, 2026 | S 1438: APPROPRIATIONS – PUBLIC SCHOOLS – IDAHO DIGITAL LEARNING ACADEMY DIVISION – Relates to the… | No | Yes | No | Passed 38–28 |
| Apr 2, 2026 | H 978: APPROPRIATIONS – HEALTH AND WELFARE – PUBLIC HEALTH SERVICES – Relates to the appropriation… | Yes | Yes | Yes | Passed 34–29 |
| Mar 31, 2026 | S 1433: APPROPRIATIONS – HEALTH AND WELFARE – MEDICAID – Relates to the appropriation to the… | Yes | Yes | Yes | Passed 35–32 |
| Mar 30, 2026 | H 964: APPROPRIATIONS – DEPARTMENT OF FISH AND GAME – Relates to the appropriation to the… | Yes | Yes | Yes | Passed 36–30 |
| Mar 27, 2026 | S 1427: APPROPRIATIONS – DEPARTMENT OF LANDS – Relates to the appropriation to the Department of… | Yes | No | Yes | Passed 36–33 |
Source: 99chambers key votes from Congress.gov, Voteview and Open States roll calls
Career
Offices held, and every time Cornilles was on a ballot. Filled marks are general elections won; hollow marks are primaries; an orange outline is a loss.
Source: 99chambers results archive (MEDSL, Klarner, state election offices)
Elections
Margin against the seat’s presidential baseline: how the seat voted for president in the same or nearest year.
| Year | Race | Result | Margin | Seat | +/− |
|---|---|---|---|---|---|
| 2026 | Idaho Legislative District 12 | Won | R+0.5 | R+41.1 | −40.6 |
| 2024 | Idaho House of Representatives, District 12 | Won | R+5.3 | — | — |
Source: 99chambers results archive; 2026: Idaho Secretary of State (unofficial)Updated Nov 8, 2026, 7:01 PM ET
Campaign money, 2025–26
- Raised
- $14.6K
- Spent
- $14.3K
- Cash
- $11.5K
Source: Idaho Secretary of State filings through Sep 23, 2026Updated Nov 1, 2026, 12:43 AM ET
Campaign committees
Open committees can still raise and spend money.
| Cornilles for Idaho State | Active |
Source: Idaho Secretary of State filings through Sep 23, 2026Updated Nov 1, 2026, 12:43 AM ET
Seats Cornilles has held
- Idaho House of Representatives, District 12 · since 2024
Source: 99chambers results archive
Who Cornilles has run against
- Jaron Crane (R) · 2026 general, won
- Jaron Crane (R) · 2024 election, won
Source: 99chambers results archive; 2026: Idaho Secretary of State (unofficial)
How we know Cornilles
One person, matched across every source we use.
- Open States ocd-person/42d3b7d7-1a3a-4d58-ae68-a84cbaaf7ad0
- Wikidata Q117834388
Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 1:51 PM ET