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Colorado's 4th Congressional District election, 2026 (June 30 Democratic primary)
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| Colorado's 4th Congressional District |
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| Democratic primary Republican primary General election |
| Election details |
| Filing deadline: March 18, 2026 |
| Primary: June 30, 2026 General: November 3, 2026 |
| How to vote |
| Poll times:
7 a.m. to 7 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 • 3rd • 4th • 5th • 6th • 7th • 8th Colorado elections, 2026 U.S. Congress elections, 2026 U.S. Senate elections, 2026 U.S. House elections, 2026 |
A Democratic Party primary takes place on June 30, 2026, in Colorado's 4th Congressional District to determine which Democratic candidate will run in the district's general election on November 3, 2026.
| Candidate filing deadline | Primary election | General election |
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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.
Colorado utilizes a semi-closed primary system. According to Section 1-7-201 of the Colorado Revised Statutes, "An eligible unaffiliated elector, including a preregistrant who is eligible under section 1-2-101 (2)(c), is entitled to vote in the primary election of a major political party without affiliating with that political party."[1][2]
For information about which offices are nominated via primary election, see this article.
This page focuses on Colorado's 4th Congressional District Democratic primary. For more in-depth information on the district's Republican primary and the general election, see the following pages:
- Colorado's 4th Congressional District election, 2026 (June 30 Republican primary)
- Colorado's 4th Congressional District election, 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 election
Democratic primary for U.S. House Colorado District 4
Trisha Calvarese, Eileen Laubacher, John Padora Jr., and Jenna Preston are running in the Democratic primary for U.S. House Colorado District 4 on June 30, 2026.
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 = candidate completed the Ballotpedia Candidate Connection survey. | ||||
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Withdrawn or disqualified candidates
- Kurt Maddox (D)
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: Democratic Party
Incumbent: No
Political Office: None
Submitted Biography: "I’m John Padora — a working dad and manufacturing engineer from Weld County. I’ve spent nearly 20 years in American manufacturing, and now I’m running for Congress to fight for working families, lower costs, and save the middle class — while taking on the extremist policies and ideology that have taken hold of our country."
Voting information
- See also: Voting in Colorado
Ballotpedia will publish the dates and deadlines related to this election as they are made available.
Campaign finance
| Name | Party | Receipts* | Disbursements** | Cash on hand | Date |
|---|---|---|---|---|---|
| Trisha Calvarese | Democratic Party | $649,926 | $352,516 | $348,711 | As of September 30, 2025 |
| Eileen Laubacher | Democratic Party | $4,404,977 | $2,450,062 | $1,954,915 | As of September 30, 2025 |
| John Padora Jr. | Democratic Party | $61,131 | $50,913 | $13,764 | As of September 30, 2025 |
| Jenna Preston | Democratic Party | $33,735 | $7,536 | $26,199 | As of September 30, 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
This section will contain facts and figures related to this district's elections when those are available.
Ballot access
This section will contain information on ballot access related to this state's elections when it is available.
See also
- Colorado's 4th Congressional District election, 2026 (June 30 Republican primary)
- Colorado's 4th Congressional District election, 2026
- United States House elections in Colorado, 2026 (June 30 Democratic primaries)
- United States House elections in Colorado, 2026 (June 30 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
