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Douglas Mangeris
Douglas Mangeris (Libertarian Party) is running for election to the U.S. House to represent Colorado's 4th Congressional District. He declared candidacy for the general election scheduled on November 3, 2026.[source]
Mangeris also ran for election to the Colorado House of Representatives to represent District 4. He will not appear on the ballot for the general election on November 3, 2026.
Elections
2026
See also: Colorado's 4th Congressional District election, 2026
General election
The primary will occur on June 30, 2026. The general election will occur on November 3, 2026. General election candidates will be added here following the primary.
General election for U.S. House Colorado District 4
Douglas Mangeris (L) and Wayne Thornton (Unaffiliated) are running in the general election for U.S. House Colorado District 4 on November 3, 2026.
Candidate | ||
| Douglas Mangeris (L) | ||
| Wayne Thornton (Unaffiliated) | ||
| ||||
 = candidate completed the Ballotpedia Candidate Connection survey. | ||||
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Democratic primary
Democratic primary for U.S. House Colorado District 4
Trisha Calvarese (D), Eileen Laubacher (D), John Padora Jr. (D), and Jenna Preston (D) are running in the Democratic primary for U.S. House Colorado District 4 on June 30, 2026.
| ||||
| = 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. | ||||
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Withdrawn or disqualified candidates
- Kurt Maddox (D)
Republican primary
Republican primary for U.S. House Colorado District 4
Incumbent Lauren Boebert (R) and Eric San Felipe (R) are running in the Republican primary for U.S. House Colorado District 4 on June 30, 2026.
Candidate | ||
 | Lauren Boebert | |
| Eric San Felipe | ||
| ||||
| = 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. | ||||
Endorsements
Ballotpedia is gathering information about candidate endorsements. To send us an endorsement, click here.
2024
See also: Colorado's 4th Congressional District election, 2024
Colorado's 4th Congressional District election, 2024 (June 25 Republican primary)
Colorado's 4th Congressional District election, 2024 (June 25 Democratic primary)
General election
General election for U.S. House Colorado District 4
Incumbent Lauren Boebert defeated Trisha Calvarese, Hannah Goodman, Frank Atwood, and Paul Fiorino in the general election for U.S. House Colorado District 4 on November 5, 2024.
Candidate | % | Votes | ||
| ✔ | | Lauren Boebert (R) | 53.6 | 240,213 |
 | Trisha Calvarese (D) | 42.0 | 188,249 | |
 | Hannah Goodman (L) | 2.6 | 11,676 | |
 | Frank Atwood (Approval Voting Party) | 1.4 | 6,233 | |
 | Paul Fiorino (Unity Party) | 0.3 | 1,436 | |
| Total votes: 447,807 | |||
| = 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
- Douglas Mangeris (L)
Democratic primary election
Democratic primary for U.S. House Colorado District 4
Trisha Calvarese defeated Ike McCorkle and John Padora Jr. in the Democratic primary for U.S. House Colorado District 4 on June 25, 2024.
Candidate | % | Votes | ||
| ✔ | | Trisha Calvarese | 45.2 | 22,756 |
 | Ike McCorkle | 41.1 | 20,723 | |
 | John Padora Jr. | 13.7 | 6,882 | |
| Total votes: 50,361 | |||
| = 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
- Karen Breslin (D)
- Anil Saxena (D)
Republican primary election
Republican primary for U.S. House Colorado District 4
The following candidates ran in the Republican primary for U.S. House Colorado District 4 on June 25, 2024.
Candidate | % | Votes | ||
| ✔ | | Lauren Boebert | 43.7 | 54,605 |
 | Jerry Sonnenberg | 14.2 | 17,791 | |
 | Deborah Flora | 13.6 | 17,069 | |
 | Richard Holtorf | 10.7 | 13,387 | |
 | Michael Lynch | 10.7 | 13,357 | |
 | Peter Yu | 7.1 | 8,854 | |
| Total votes: 125,063 | |||
| = 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
- Ted Harvey (R)
- Ken Buck (R)
- Justin Schreiber (R)
- Chris Phelen (R)
- Floyd Trujillo (R)
- Trent Leisy (R)
- Mariel Bailey (R)
Endorsements
Ballotpedia did not identify endorsements for Mangeris in this election.
Campaign themes
2026
Ballotpedia survey responses
See also: Ballotpedia's Candidate Connection
Douglas Mangeris has not yet completed Ballotpedia's 2026 Candidate Connection survey. If you are Douglas Mangeris, click here to fill out Ballotpedia's 2026 Candidate Connection survey.
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2024
Douglas Mangeris did not complete Ballotpedia's 2024 Candidate Connection survey.
Campaign finance summary
Note: The finance data shown here comes from the disclosures required of candidates and parties. Depending on the election or state, this may represent only a portion of all the funds spent on their behalf. Satellite spending groups may or may not have expended funds related to the candidate or politician on whose page you are reading this disclaimer. Campaign finance data from elections may be incomplete. For elections to federal offices, complete data can be found at the FEC website. Click here for more on federal campaign finance law and here for more on state campaign finance law.
See also
2026 Elections
External links
Footnotes
