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Idaho's 1st Congressional District election, 2026 (May 19 Republican primary)

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← 2024
Idaho's 1st Congressional District
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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.
Voting in Idaho

Race ratings
Cook Political Report: Solid Republican
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
Idaho's 1st Congressional District
U.S. Senate • 1st • 2nd
Idaho 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 19, 2026, in Idaho'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
February 27, 2026
May 19, 2026
November 3, 2026



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.

This page focuses on Idaho'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:

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
Note: At this time, Ballotpedia is combining all declared candidates for this election into one list under a general election heading. As primary election dates are published, this information will be updated to separate general election candidates from primary candidates as appropriate.

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.

Voting information

See also: Voting in Idaho

Election information in Idaho: May 19, 2026, election.

What is the voter registration deadline?

  • In-person: May 19, 2026
  • By mail: Received by May 8, 2026
  • Online: May 8, 2026

Is absentee/mail-in voting available to all voters?

N/A

What is the absentee/mail-in ballot request deadline?

  • In-person: May 15, 2026
  • By mail: Received by May 8, 2026
  • Online: May 8, 2026

What is the absentee/mail-in ballot return deadline?

  • In-person: May 19, 2026
  • By mail: Received by May 19, 2026

Is early voting available to all voters?

Yes

What are the early voting start and end dates?

April 27, 2026 to May 15, 2026

Are all voters required to present ID at the polls? If so, is a photo or non-photo ID required?

N/A

When are polls open on Election Day?

8:00 a.m. - 8:00 p.m. (MT/PT)


Campaign finance

There are currently no declared candidates in this race. Know of one we missed? Click here to let us know.

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 in place for the 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 in place for this election. Click the map below to enlarge it.

2023_01_03_id_congressional_district_01.jpg
See also: Primary election competitiveness in state and federal government, 2026
Information about competitiveness will be added here as it becomes available.

Partisan Voter Index

See also: The Cook Political Report's 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 R+22. This meant that in those two presidential elections, this district's results were 22 percentage points more Republican than the national average. This made Idaho's 1st the 21st most Republican district nationally.[4]

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.

2024 presidential results in Idaho's 1st Congressional District
Kamala Harris Democratic Party Donald Trump Republican Party
26.0% 71.0%

Presidential voting history

See also: Presidential election in Idaho, 2024

Idaho presidential election results (1900-2024)

  • 9 Democratic wins
  • 23 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 D R R D D R R R D D D D D R R R D R R R R R R R R R R R R R R R
See also: Party control of Idaho state government

Congressional delegation

The table below displays the partisan composition of Idaho's congressional delegation as of October 2025.

Congressional Partisan Breakdown from Idaho
Party U.S. Senate U.S. House Total
Democratic 0 0 0
Republican 2 2 4
Independent 0 0 0
Vacancies 0 0 0
Total 2 2 4

State executive

The table below displays the officeholders in Idaho's top four state executive offices as of October 2025.

State executive officials in Idaho, October 2025
Office Officeholder
Governor Republican Party Brad Little
Lieutenant Governor Republican Party Scott Bedke
Secretary of State Republican Party Phil McGrane
Attorney General Republican Party Raúl Labrador

State legislature

Idaho State Senate

Party As of October 2025
     Democratic Party 6
     Republican Party 29
     Other 0
     Vacancies 0
Total 35

Idaho House of Representatives

Party As of October 2025
     Democratic Party 9
     Republican Party 61
     Other 0
     Vacancies 0
Total 70

Trifecta control

Idaho Party Control: 1992-2025
No Democratic trifectas  •  Thirty one 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 D D D 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
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 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

Ballot access

The table below details filing requirements for U.S. House 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. House candidates, 2026
State Office Party Signatures required Filing fee Filing deadline Source
Idaho U.S. House Ballot-qualified party 500 $300 2/27/2026 Source
Idaho U.S. House Unaffiliated 500 $300 8/28/2026 Source

See also

External links

Footnotes

  1. ↑ Idaho State Legislature, "Idaho Code § 34–904A," accessed September 3, 2025
  2. ↑ Idaho Secretary of State's Office, "Primary Elections in Idaho," accessed October 20, 2025
  3. ↑ ACLU Idaho, "2024 Your Rights as an Idaho Voter," accessed October 20, 2025
  4. ↑ Cook Political Report, "2025 Cook PVI℠: District Map and List (119th Congress)," accessed July 1, 2025


Idaho's current delegation to the United States Congress
Senators
Mike Crapo (R)
Jim Risch (R)
Representatives
District 1
District 2
Republican Party (4)


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