United States Senate election in Iowa, 2026 (June 2 Republican primary)
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| U.S. Senate, Iowa |
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| Democratic primary Republican primary General election |
| Election details |
| Filing deadline: March 13, 2026 |
| Primary: June 2, 2026 General: November 3, 2026 |
| How to vote |
| Poll times:
7 a.m. to 8 p.m. |
| Race ratings |
DDHQ and The Hill: Pending Inside Elections: Likely Republican Sabato's Crystal Ball: Likely Republican |
| Ballotpedia analysis |
| U.S. Senate battlegrounds U.S. House battlegrounds Federal and state primary competitiveness Ballotpedia's Election Analysis Hub, 2026 |
| See also |
U.S. Senate • 1st • 2nd • 3rd • 4th Iowa elections, 2026 U.S. Congress elections, 2026 U.S. Senate elections, 2026 U.S. House elections, 2026 |
A Republican Party primary takes place on June 2, 2026, in Iowa to determine which Republican candidate will run in the state's general election on November 3, 2026.
| Candidate filing deadline | Primary election | General election |
|---|---|---|
Heading into the election, the incumbent is Joni Ernst (Republican), who was first elected in 2014.
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. In Iowa, state law provides for a closed primary where every voter must be affiliated with a party in order to participate in its primary. However, a voter can change his or her political party affiliation on the day of the primary.[1][2]
For information about which offices are nominated via primary election, see this article.
Thirty-three of the 100 U.S. Senate seats are up for election, and another two seats are up for special election. Democrats hold 13 of the seats up for election, and Republicans hold 22. As of January 2026, nine members of the U.S. Senate announced they are not running for re-election. To read more about the U.S. Senate elections taking place this year, click here.
This is one of nine open U.S. Senate races this year in which an incumbent is not running for re-election. Across the country, four Democrats and five Republicans are not running for re-election — more than any year since 2012. In 2024, eight incumbents — four Democrats, two Republicans, and two independents — did not seek re-election.
This page focuses on Iowa's United States Senate Republican primary. For more in-depth information on the state's Democratic primary and the general election, see the following pages:
- United States Senate election in Iowa, 2026 (June 2 Democratic primary)
- United States Senate election in Iowa, 2026
Candidates and election results
Republican primary
Republican primary for U.S. Senate Iowa
John Berman (R), Jim Carlin (R), Ashley Hinson (R), and Joshua Smith (R) are running in the Republican primary for U.S. Senate Iowa on June 2, 2026.
Candidate | ||
 | John Berman | |
 | Jim Carlin | |
 | Ashley Hinson | |
 | Joshua Smith | |
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 = candidate completed the Ballotpedia Candidate Connection survey. | ||||
| If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey. | ||||
Do you want a spreadsheet of this type of data? Contact our sales team. | ||||
Withdrawn or disqualified candidates
- Joni Ernst (R)
Candidate profiles
There are currently no candidate profiles created for this race. Candidate profiles will appear here as they are created. Encourage the candidates in this race to complete Ballotpedia's Candidate Connection survey so that their profile will appear here. You can ask candidates in this race to fill out the survey by clicking their names below:
Voting information
- See also: Voting in Iowa
Campaign finance
| Name | Party | Receipts* | Disbursements** | Cash on hand | Date |
|---|---|---|---|---|---|
| John Berman | Republican Party | $0 | $0 | $0 | Data not available*** |
| Jim Carlin | Republican Party | $247,184 | $214,770 | $32,414 | As of December 31, 2025 |
| Ashley Hinson | Republican Party | $4,892,227 | $1,650,040 | $5,170,263 | As of December 31, 2025 |
| Joshua Smith | Republican Party | $0 | $0 | $0 | Data not available*** |
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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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Ballot access
The table below details filing requirements for U.S. Senate candidates in Iowa in the 2026 election cycle. For additional information on candidate ballot access requirements in Iowa, click here.
| Filing requirements for U.S. Senate candidates, 2026 | ||||||
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| State | Office | Party | Signatures required | Filing fee | Filing deadline | Source |
| Iowa | U.S. Senate | Ballot-qualified party | 3,500, including at least 100 signatures from at least 19 counties. | N/A | 3/13/2026 | Source |
| Iowa | U.S. Senate | Unaffiliated | 3,500, including at least 100 signatures from at least 19 counties. | N/A | 6/2/2026 | Source |
See also
- United States Senate election in Iowa, 2026 (June 2 Democratic primary)
- United States Senate election in Iowa, 2026
- United States Senate Democratic Party primaries, 2026
- United States Senate Republican Party primaries, 2026
- United States Senate elections, 2026
- U.S. Senate battlegrounds, 2026
External links
Footnotes
