Primary
Democratic Primary
Held May 5, 2026.
| Candidate | Votes | % | |
|---|---|---|---|
| Greg Landsman ✓ | 36,984 | 67.9% | |
| Damon Lynch IV | 17,483 | 32.1% |
Republican Primary
Held May 5, 2026.
| Candidate | Votes | % | |
|---|---|---|---|
| Eric Conroy ✓ | 25,603 | 71.9% | |
| Holly Adams | 7,020 | 19.7% | |
| Rosemary Oglesby-Henry | 2,994 | 8.4% |
Full calendar and every race: Ohio primary guide
Race Overview
General Election Polling Trend
PollingSource average — trailing average of all polls from the last 30 days.
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Candidates
Greg Landsman Nominee Incumbent
DemocratGeneral Election Polling Average
Average reflects all polls from the last 30 days; table shows the most recent 30 days or the newest 3 polls, whichever is more. How accurate is each pollster? →
| Pollster | Date | Sample | MoE | Dem | Rep |
|---|---|---|---|---|---|
| Quantus Insights partisan·R | 2026-08-24 | 509 LV | ±4.60 | Greg Landsman 47.00% | Eric Conroy 43.00% |
Questions About This Race
Who is winning the 2026 OH-01 House race?
Greg Landsman leads Eric Conroy 47% to 43% in the PollingSource polling average — a D+4.0 margin based on 1 poll from the last 30 days.
Is the 2026 OH-01 House race competitive?
Yes — the expert consensus rates it Lean R: Republicans are favored, but the race is competitive.
What does the latest poll of the 2026 OH-01 House race say?
The most recent public poll, from Quantus Insights (completed August 24, 2026), found Greg Landsman (D) at 47% and Eric Conroy (R) at 43%.
When is the 2026 OH-01 House race decided?
Election Day is Tuesday, November 3, 2026.
How is the PollingSource average calculated?
The PollingSource average is the unweighted mean of every scientific public poll of the race from the last 30 days — we do not exclude pollsters. Each race page lists the individual polls behind the average with pollster, field dates, sample size, and margin of error. Full details: pollingsource.com/methodology.
Independent Expenditures Updated just now
Top Spenders
- RED BRIDGE LEADERSHIP PAC GOP-aligned $263,465
- CFFE PAC Dem-aligned $121,471
- NO GOING BACK PAC INC. GOP-aligned $109,530
- NEW AMERICAN JOBS FUND Dem-aligned $52,409
- AMERICA PAC GOP-aligned $12,481
- OHIO CITIZEN ACTION Dem-aligned $4,885
- GIVEGREEN UNITED ACTION Dem-aligned $253
- SIERRA CLUB INDEPENDENT ACTION Dem-aligned $10
Full outside-spending research — every committee, every race →
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