Primary
Democratic Primary
Held May 19, 2026.
| Candidate | Votes | % | |
|---|---|---|---|
| Kaylee Peterson ✓ | 18,907 | 87.1% | |
| Ken Brungardt | 2,803 | 12.9% |
Republican Primary
Held May 19, 2026.
| Candidate | Votes | % | |
|---|---|---|---|
| Russ Fulcher ✓ | 100,104 | 78.2% | |
| Andy Briner | 14,438 | 11.3% | |
| Joseph Morrison | 13,407 | 10.5% |
Full calendar and every race: Idaho primary guide
Race Overview
General Election Polling Trend
Showing the published average. The rating above uses this figure.
PollingSource average — the last three qualifying polls of the locked matchup, or fewer (no polls in the last 30 days). This is an average, not a forecast.
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Candidates
General Election Polling Average
No scientific polls in the last 30 days — the figure is the last three qualifying polls of the locked matchup, or fewer when fewer exist, not a 30-day mean. The table lists the polls in that average, plus the most recent 30 days or the newest 3 polls, whichever is more. How accurate is each pollster? →
| Pollster | Date | Sample | MoE | Dem | Rep |
|---|---|---|---|---|---|
| Change Research (D) partisan·D | 2026-07-30 | 606 LV | Kaylee Peterson 27.00% | Russ Fulcher 48.00% | |
| SurveyUSA | 2026-07-23 | 480 LV | Kaylee Peterson 35.00% | Russ Fulcher 45.00% |
Questions About This Race
Who is winning the 2026 ID-01 House race?
Russ Fulcher leads Kaylee Jade Peterson 46.5% to 31% in the PollingSource polling average — a R+15.5 margin based on the last three qualifying polls of the locked matchup, or fewer (no polls in the last 30 days).
Is the 2026 ID-01 House race competitive?
No — the expert consensus rates it Safe R for Republicans.
What does the latest poll of the 2026 ID-01 House race say?
The most recent public poll, from Change Research (D) (completed July 30, 2026), found Kaylee Peterson (D) at 27% and Russ Fulcher (R) at 48%.
When is the 2026 ID-01 House race decided?
Election Day is Tuesday, November 3, 2026.
How is the PollingSource average calculated?
The PollingSource average on this page is the last three qualifying scientific public polls of the locked matchup, or fewer — the newest of them is older than 30 days, so this is not a 30-day mean and it does not set the rating. We do not exclude pollsters. Full details: pollingsource.com/methodology.
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