United States Senate election in Idaho, 2026 (May 19 Democratic primary)
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| U.S. Senate, Idaho |
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| Democratic primary Republican primary General election |
| Election details |
| Filing deadline: February 27, 2026 |
| Primary: May 19, 2026 General: November 3, 2026 |
| How to vote |
| Poll times:
8 a.m. to 8 p.m. |
| Race ratings |
DDHQ and The Hill: Pending Inside Elections: Solid Republican Sabato's Crystal Ball: Safe 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 Idaho elections, 2026 U.S. Congress elections, 2026 U.S. Senate elections, 2026 U.S. House elections, 2026 |
A Democratic Party primary takes place on May 19, 2026, in Idaho to determine which Democratic 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 Jim Risch (Republican), who was first elected in 2008.
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 Idaho, parties decide who may vote in their primaries.[1] As of October 2025, the Democratic Party allows unaffiliated voters to vote in its primary, while the Republican Party only allows voters registered with its party to vote in its primary. Unaffiliated voters can choose to affiliate with a party on Election Day.[2][3]
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 page focuses on Idaho's United States Senate Democratic primary. For more in-depth information on the state's Republican primary and the general election, see the following pages:
- United States Senate election in Idaho, 2026 (May 19 Republican primary)
- United States Senate election in Idaho, 2026
Candidates and election results
Note: The following list includes official candidates only. Ballotpedia defines official candidates as people who:
- Register with a federal or state campaign finance agency before the candidate filing deadline
- Appear on candidate lists released by government election agencies
Democratic primary
Democratic primary for U.S. Senate Idaho
David Roth (D) is running in the Democratic primary for U.S. Senate Idaho on May 19, 2026.
Candidate | ||
 | David Roth | |
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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 Idaho
Campaign finance
| Name | Party | Receipts* | Disbursements** | Cash on hand | Date |
|---|---|---|---|---|---|
| David Roth | Democratic Party | $5,127 | $5,831 | $-109 | 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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Ballot access
The table below details filing requirements for U.S. Senate candidates in Idaho in the 2026 election cycle. For additional information on candidate ballot access requirements in Idaho, click here.
| Filing requirements for U.S. Senate candidates, 2026 | ||||||
|---|---|---|---|---|---|---|
| State | Office | Party | Signatures required | Filing fee | Filing deadline | Source |
| Idaho | U.S. Senate | Ballot-qualified party | 1,000 | $500.00 | 2/27/2026 | Source |
| Idaho | U.S. Senate | Unaffiliated | 1,000 | $500.00 | 8/28/2026 | Source |
See also
- United States Senate election in Idaho, 2026 (May 19 Republican primary)
- United States Senate election in Idaho, 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
