Ohio's 1st Congressional District election, 2026 (May 5 Republican primary)
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← 2024
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| Ohio's 1st Congressional District |
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| Democratic primary Republican primary General election |
| Election details |
| Filing deadline: February 4, 2026 |
| Primary: May 5, 2026 General: November 3, 2026 |
| How to vote |
| Poll times:
6:30 a.m. to 7:30 p.m. |
| Race ratings |
DDHQ and The Hill: Pending Inside Elections: Toss-up Sabato's Crystal Ball: Toss-up |
| Ballotpedia analysis |
| U.S. Senate battlegrounds U.S. House battlegrounds Federal and state primary competitiveness Ballotpedia's Election Analysis Hub, 2026 |
| See also |
1st • 2nd • 3rd • 4th • 5th • 6th • 7th • 8th • 9th • 10th • 11th • 12th • 13th • 14th • 15th Ohio elections, 2026 U.S. Congress elections, 2026 U.S. Senate elections, 2026 U.S. House elections, 2026 |
A Republican Party primary takes place on May 5, 2026, in Ohio's 1st Congressional District to determine which Republican candidate will run in the district's general election on November 3, 2026.
| Candidate filing deadline | Primary election | General election |
|---|---|---|
A primary election is an election in which registered voters select a candidate that they believe should be a political party's candidate for elected office to run in the general election. They are also used to choose convention delegates and party leaders. Primaries are state-level and local-level elections that take place prior to a general election. Ohio law provides for closed primaries, meaning a voter must be affiliated with a party to vote in that party's primary. However, a voter of any affiliation can choose the ballot they would like to vote on the day of the primary, and their choice may be regarded as registration with that party.[1][2]
For information about which offices are nominated via primary election, see this article.
This page focuses on Ohio's 1st Congressional District Republican primary. For more in-depth information on the district's Democratic primary and the general election, see the following pages:
- Ohio's 1st Congressional District election, 2026 (May 5 Democratic primary)
- Ohio's 1st Congressional District election, 2026
Candidates and election results
Republican primary election
Republican primary for U.S. House Ohio District 1
Holly Adams, Eric Conroy, Steven Erbeck, and Rosemary Oglesby-Henry are running in the Republican primary for U.S. House Ohio District 1 on May 5, 2026.
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Candidate profiles
This section includes candidate profiles that may be created in one of two ways: either the candidate completed Ballotpedia's Candidate Connection survey, or Ballotpedia staff may compile a profile based on campaign websites, advertisements, and public statements after identifying the candidate as noteworthy. For more on how we select candidates to include, click here.
Party: Republican Party
Incumbent: No
Submitted Biography: "Eric Conroy is an Air Force veteran, former CIA case officer, and Republican candidate for Congress in Ohio’s First Congressional District. Born and raised on the West Side of Cincinnati, he is a proud graduate of Elder High School. He went on to graduate from the U.S. Air Force Academy, serve on active duty, and later work overseas in national security as a CIA case officer. His career has been defined by service to the country and protecting American interests. Conroy is running for Congress to bring disciplined leadership, real-world security experience, and a strong Southwest Ohio voice to Washington."
Party: Republican Party
Incumbent: No
Submitted Biography: "Born and raised in Mason, Ohio, Steven Erbeck has the experience and values necessary to lead our community in Southwest Ohio to a more promising future. Growing up on a farm, Steven learned the importance of hard work at an early age. Steven’s attended The Ohio State University, where he studied Business and Biology. Inspired by his family’s legacy in dentistry, he later enrolled at New York University’s College of Dentistry. Driven by gratitude and a strong sense of legacy, Steven made his way back to Cincinnati to take the reins of the family business. As a fourth-generation dentist (his great-grandfather was Mason’s first dentist), Steven expanded his family’s century-old business, The Cincinnati Dental Group, into a state-of-the-art, multi-doctor practice with offices in both Mason and Montgomery. Steven is dedicated to his family, his faith, and his community. He resides in Madeira with his wife, Sydney, their six-month-old daughter, Georgia, and their golden retriever, Winston. Steven is a parishioner of St. Gertrude’s Church, and is active in his community . As a small business owner and a passionate healthcare advocate, Steven has regularly attended lobbying sessions on Capitol Hill to push for greater healthcare access and combat the opioid epidemic. Rooted in a passion for the great state of Ohio’s families, freedom, and the future, Steven proudly represents his community with integrity and is dedicated to creating a stronger, brighter Ohio for the next generation."
Party: Republican Party
Incumbent: No
Submitted Biography: "Rosemary Oglesby-Henry, affectionately known as Ms. Rosemary, is a dynamic leader and community advocate with a track record of impactful service in Southwest Ohio. Raised in Avondale, she turned her personal challenges—becoming a teen mother—into a driving force to empower others. She founded Rosemary’s Babies Co., a 501c3 nonprofit that supports young parents aged 9-19, helping over 3,000 families achieve self-sufficiency. A conservative leader, Ms. Rosemary graduated from Withrow High School then obtained her Bachelor’s in Liberal Studies, a Master’s in Organizational Leadership, and numerous certifications in human services, business, and leadership. As an award-winning CEO and educator, she has earned national recognition, including the Presidential Lifetime Achievement Award and inclusion in the Ohio 500 Most Influential Leaders. Her faith-driven leadership and pragmatic problem-solving approach led to the transformation of a blighted area into the Holloway House & Resource Center, a $2M health-focused facility for young mothers. As a passionate advocate for small business development, Ms. Rosemary has helped hundreds of entrepreneurs grow their businesses, fueling economic opportunity in Greater Cincinnati. Ms. Rosemary is committed to empowering individuals through education, service, and policies that reduce government dependency while strengthening communities. Her career reflects a deep commitment to creating tangible solutions and lasting impact."
Voting information
- See also: Voting in Ohio
Campaign finance
| Name | Party | Receipts* | Disbursements** | Cash on hand | Date |
|---|---|---|---|---|---|
| Holly Adams | Republican Party | $0 | $0 | $0 | Data not available*** |
| Eric Conroy | Republican Party | $603,083 | $163,439 | $439,644 | As of December 31, 2025 |
| Steven Erbeck | Republican Party | $557,918 | $93,805 | $464,114 | As of December 31, 2025 |
| Rosemary Oglesby-Henry | Republican Party | $42,540 | $40,109 | $2,430 | As of December 31, 2025 |
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Source: Federal Elections Commission, "Campaign finance data," 2026. This product uses the openFEC API but is not endorsed or certified by the Federal Election Commission (FEC).
* According to the FEC, "Receipts are anything of value (money, goods, services or property) received by a political committee." |
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District analysis
Click the tabs below to view information about voter composition, past elections, and demographics in both the district and the state.
- District map - A map of the district before and after redistricting ahead of the 2026 election.
- Competitiveness - Information about the competitiveness of 2026 U.S. House elections in the state.
- Presidential elections - Information about presidential elections in the district and the state.
- State party control - The partisan makeup of the state's congressional delegation and state government.
Below is the district map used in the 2024 election next to the map in place for the 2026 election. Click on a map below to enlarge it.
2024
2026
This section contains data on U.S. House primary election competitiveness in Ohio.
Post-filing deadline analysis
The following analysis covers all U.S. House districts up for election in Ohio in 2026. Information below was calculated on Feb. 4, 2026, and may differ from information shown in the table above due to candidate replacements and withdrawals after that time.
Seventy-eight candidates — 46 Democrats and 32 Republicans — ran for Ohio’s 15 U.S. House districts. That’s 5.2 candidates per district. There were 4.1 candidates per district in 2024, 4.5 in 2022, 4.2 in 2020, 5.1 in 2018, 3.7 in 2016, and 2.9 in 2014.
These were the first elections to take place since the Ohio Redistricting Commission voted unanimously to approve a new congressional map for 2026. The state was required to redraw its congressional district boundaries ahead of the 2026 elections due to a constitutional amendment that gave shorter expiration dates to maps passed without bipartisan support.
No districts were open in 2026, meaning all incumbents — five Democrats and 10 Republicans — ran for re-election. There were two open districts in 2024, one in 2022, two in 2018, one in 2016, and none in 2014.
Twenty primaries — 12 Democratic and eight Republican — were contested in 2026. In total, there were 12 contested primaries in 2024, 10 in 2022, 23 in 2020, 22 in 2018, 18 in 2016, and 14 in 2014.
Rep. Max Miller (R-7th) and eight Democrats ran for the 7th district, the most candidates that ran for a district in 2026.
Seven incumbents — three Democrats and four Republicans — faced primary challengers in 2026. There were four incumbents in a contested primary in 2024, six in 2022, 10 in 2020, eight in 2018, four in 2016, and five in 2014.
Candidates filed to run in the Republican and Democratic primaries in all 15 districts, meaning no districts were guaranteed to either party.Partisan Voter Index
Heading into the 2026 elections, based on results from the 2024 and 2020 presidential elections, the Cook Partisan Voter Index for this district is D+3. This meant that in those two presidential elections, this district's results were 3 percentage points more Democratic than the national average. This made Ohio's 1st the 179th most Democratic district nationally.[3]
2020 presidential election results
The table below shows what the vote in the 2024 presidential election was in this district. The presidential election data was compiled by The Downballot.
Kamala Harris  | Donald Trump  |
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| 47.5% | 51.6% |
Presidential voting history
- See also: Presidential election in Ohio, 2024
Ohio presidential election results (1900-2024)
- 12 Democratic wins
- 19 Republican wins
| Year | 1900 | 1904 | 1908 | 1912 | 1916 | 1920 | 1924 | 1928 | 1932 | 1936 | 1940 | 1944 | 1948 | 1952 | 1956 | 1960 | 1964 | 1968 | 1972 | 1976 | 1980 | 1984 | 1988 | 1992 | 1996 | 2000 | 2004 | 2008 | 2012 | 2016 | 2020 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Winning Party | R | R | R | D | D | R | R | R | D | D | D | R | D | R | R | R | D | R | R | D | R | R | R | D | D | R | R | D | D | R | R | R |
- See also: Party control of Ohio state government
Congressional delegation
The table below displays the partisan composition of Ohio's congressional delegation as of October 2025.
| Congressional Partisan Breakdown from Ohio | |||
|---|---|---|---|
| Party | U.S. Senate | U.S. House | Total |
| Democratic | 0 | 5 | 5 |
| Republican | 2 | 10 | 12 |
| Independent | 0 | 0 | 0 |
| Vacancies | 0 | 0 | 0 |
| Total | 2 | 15 | 17 |
State executive
The table below displays the officeholders in Ohio's top four state executive offices as of October 2025.
| Office | Officeholder |
|---|---|
| Governor | Richard Michael DeWine |
| Lieutenant Governor | Jim Tressel |
| Secretary of State | Frank LaRose |
| Attorney General | Dave Yost |
State legislature
Ohio State Senate
| Party | As of October 2025 | |
|---|---|---|
| Democratic Party | 9 | |
| Republican Party | 24 | |
| Other | 0 | |
| Vacancies | 0 | |
| Total | 33 | |
Ohio House of Representatives
| Party | As of October 2025 | |
|---|---|---|
| Democratic Party | 34 | |
| Republican Party | 65 | |
| Other | 0 | |
| Vacancies | 0 | |
| Total | 99 | |
Trifecta control
Ohio Party Control: 1992-2025
No Democratic trifectas • Twenty-seven years of Republican trifectas
Scroll left and right on the table below to view more years.
| Year | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Governor | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | D | D | D | D | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R |
| Senate | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R |
| House | D | D | D | R | R | R | R | R | R | R | R | R | R | R | R | R | R | D | D | R | R | R | R | R | R | R | R | R | R | R | R | R | R | R |
Ballot access
The table below details filing requirements for U.S. House candidates in Ohio in the 2026 election cycle. For additional information on candidate ballot access requirements in Ohio, click here.
| Filing requirements for U.S. House candidates, 2026 | ||||||
|---|---|---|---|---|---|---|
| State | Office | Party | Signatures required | Filing fee | Filing deadline | Source |
| Ohio | U.S. House | Major party | 50 | $85 | 2/4/2026 | Source |
| Ohio | U.S. House | Minor party | 25 | $85 | 2/4/2026 | Source |
| Ohio | U.S. House | Unaffiliated | 1% of the vote cast for governor in the district in the last election | $85 | 5/4/2026 | Source |
See also
- Ohio's 1st Congressional District election, 2026 (May 5 Democratic primary)
- Ohio's 1st Congressional District election, 2026
- United States House elections in Ohio, 2026 (May 5 Democratic primaries)
- United States House elections in Ohio, 2026 (May 5 Republican primaries)
- United States House Democratic Party primaries, 2026
- United States House Republican Party primaries, 2026
- United States House of Representatives elections, 2026
- U.S. House battlegrounds, 2026
External links
Footnotes
- ↑ Ohio Laws and Administrative Codes, "Ohio Rev. Code Ann. § 3513.19," accessed December 19, 2025
- ↑ Ohio Laws and Administrative Codes, "Ohio Rev. Code Ann. § 3513.05," accessed December 19, 2025
- ↑ Cook Political Report, "2025 Cook PVI℠: District Map and List (119th Congress)," accessed July 1, 2025
