Lauren Boebert (Republican), Eileen Laubacher (Democrat) and Douglas Mangeris (Libertarian) are on the November 3, 2026 ballot for U.S. House in Colorado District 4, with one certified write-in, as recorded September 21, 2026 from the Colorado Secretary of State.
The November ballot
Raised so far, filed with the FEC
Also in this race: Douglas Mangeris (Libertarian) and Luis Galvan (Republican, write-in).
Certified list: Colorado Secretary of State. Faces and bars are the campaigns that hold the seat or have $25,000 raised or outside spending on file; being outside that group is a filing fact, not a mark. A candidate marked write-in is certified to run and their votes count; their name is not printed on the ballot. Not a prediction.
The seat
Lauren Boebert
Republican · Holds the seat now
First took office 2021 · Age 39
Discloses no individual stock trades.
From the member's own disclosures and congress.gov. Not cosponsoring is not a vote against a ban.
How to vote in Colorado
- General electionNovember 3, 2026
Register 8 days before by mail or online, or same-day through Election Day in person.
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How they won the primary
The primary · 73,049 votes
- Eileen Laubacher Won: 99.2% 72,483
- Jenna Preston (write-in): 0.8% 566
The primary · 92,651 votes
- Lauren Boebert Won: Unopposed 92,651
Primary results as recorded September 23, 2026, ordered by votes. Source: Colorado Secretary of State certified primary abstract. Certified July 24, 2026. A primary result is a recorded fact about a past contest, not a prediction of November.
The money on this race
- Raised by candidates
- $11M
- Outside money
- $2M
Outside money, for and against
Independent expenditures; direction is each filer's own declared filing. No outside money is on file for or against the other 2 names on this ballot.
Where each candidate's money comes from
Small donors give $200 or less; PACs are political action committees. Shares of each candidate's own receipts on file with the FEC. Outside money is not part of these figures.
Who is spending on this race
The largest groups spending independently here, ranked; open a row for whose race the money went into.
Independent expenditures reported to the FEC; direction is each group's own declared filing.
Not on the November ballot
8 filed- Trisha CalvareseDemocrat-
- John Padora Jr.Democrat$94K
- Jenna PrestonDemocrat$101K
- Michael MaddoxDemocrat-
- Eric PhelanRepublican-
Primary candidates who did not advance, committees still on file, and candidacies that ended. Being here is a filing fact, not a mark against anyone.
The district
Census context- People
- 756K
- Median household income
- $115K
- Unemployment
- 3.9%
- Living below the poverty line
- 6.8%
- Without health insurance
- 5.8%
U.S. Census Bureau, ACS 2024 5-year estimates. Context about the district, not a statement about any candidate.
How this seat voted last time
R+12 in 2024
- Lauren Boebert Won: 53.6%
- Trisha Calvarese: 42.0%
447,807 votes for candidates. Other candidates and write-ins took the remaining 4.4%. A past result is a filed fact, not a prediction of November.
Certified returns via MIT Election Data and Science Lab, from the House Clerk's election statistics and state canvasses.
Candidates and financing from the FEC, public domain. Candidate totals are each campaign's latest FEC report, ending between June 30, 2026 and August 15, 2026. Outside money is the FEC's processed total of independent expenditures plus the 24- and 48-hour reports filed since each group's latest regular report. It covers this two-year cycle, the same as the candidate totals. Dataset built 2026-10-12. Nothing here is a forecast, a grade, or a ranking of candidates.