Lauren Boebert Loses Colorado House Seat to Laubacher
One of the most surprising results of the 2026 midterm elections was settled on Friday 13 November 2026: Democrat Eileen Laubacher defeated three-term Republican Representative Lauren Boebert for a U.S. House seat in Colorado, ousting one of President Donald Trump's most outspoken allies in Congress.
Laubacher, a retired Navy rear admiral, won Colorado's 4th Congressional District by less than one percentage point — a seat that had long favoured Republicans and that forecasters had rated as likely to stay Republican. This is the result, the two candidates, and what the upset means.
The Result
With nearly all expected votes counted, Laubacher finished with 48.8 percent of the vote (186,218 votes) to Boebert's 47.9 percent (182,856 votes) — a margin of about 3,300 votes. A third candidate, Douglas Mangeris, took 3.3 percent. The race was held on Tuesday 3 November 2026, as part of the midterm elections, and the Associated Press reported the outcome on Friday 13 November.
The result was called by Decision Desk HQ, and CNN projected Laubacher as the winner. Before Election Day, Decision Desk HQ had rated the seat "likely Republican" — a reminder of how unexpected the outcome was. Laubacher's win is only the second time since 1973 that a Democrat has won the district, which stretches across Colorado's Eastern Plains into Douglas County and Loveland.
Who Is Eileen Laubacher?
Eileen Laubacher is a retired rear admiral in the United States Navy. She declared victory on Monday 9 November, while holding a lead of more than 3,300 votes, and travelled to Washington, D.C., the same day for new-member orientation at the Capitol, where she was photographed arriving with other newly elected members.
Little about her campaign followed the usual pattern for a challenger in a Republican-leaning district. She ran as a Democrat in a seat that had not elected one in more than half a century, and she did so in a year when Democrats were winning across the country — but even in that environment, Colorado's 4th District was not supposed to be competitive.
Laubacher is expected to take her seat when the new Congress convenes in January 2027. Her win gives Colorado's House delegation a 7–1 Democratic majority.
Who Is Lauren Boebert?
Lauren Boebert was first elected to Congress in 2020 and served three terms representing Colorado. She became one of the most recognisable figures in the House — a prominent supporter of President Donald Trump, a frequent presence in conservative media, and a lawmaker known for confrontational floor speeches and high-profile clashes with Democratic colleagues.
Her defeat ends her time in Congress after six years. She had switched districts before the 2024 election, moving from Colorado's 3rd District to the 4th, a seat that was considered safer for a Republican — which makes the loss, in the district she chose, all the more striking.
Why This Race Was Watched
The 4th District was never meant to be a battleground. It covers the Eastern Plains, one of the most conservative parts of Colorado, along with fast-growing suburbs in Douglas County and the city of Loveland. Forecasters rated it "likely Republican" heading into Election Day, and Boebert's campaign had treated it as a seat to hold, not a seat to fight for.
That is why the result drew national attention. It was one of several surprising Republican losses in what the Associated Press described as shaping up to be the most lopsided election in half a century — a midterm in which Democrats won the House and the Senate and flipped five governorships. In that wave, even seats that looked safe turned out not to be.
The result also says something about how the 2026 map moved. Democrats did not only win the races they were expected to win; they won races in places where they had not been competitive for decades. Colorado's 4th District is the clearest example of that.
The House result was part of the same wave. Democrats won the House, the Senate and five governorships on 3 November, and the Associated Press described the election as shaping up to be the most lopsided in half a century. In the Senate, eight new Democrats flipped their states — including Scott Colom in Mississippi, a state that had not elected a Democratic senator since 1982. Boebert's loss belongs in that company: a seat no forecaster thought was in play, falling in a year when the map moved almost everywhere at once. That is why a House race in eastern Colorado became national news.
The Count and the Concession Question
The race was close enough, for long enough, that the outcome stayed uncertain for ten days after the election. On Monday 9 November, Laubacher held 185,923 votes to Boebert's 182,686, with about 97.9 percent of votes counted, and she declared victory. Boebert did not concede, saying votes were still being counted, and her campaign said it was monitoring the count and raising concerns about unusual voting patterns.
On Wednesday 11 November, Boebert told reporters outside the Capitol that she was not conceding because counting was ongoing. By Friday, with nearly all votes counted and her lead holding at about 3,300 votes, the race was called for Laubacher.
Under Colorado law, an automatic recount is required if the margin is within 0.5 percent of the leading candidate's vote total. The Denver Post reported that Laubacher's lead was outside that threshold, so no automatic recount was triggered. The remaining steps are procedural: counties finish tabulating and certifying ballots, and the result becomes official.
What It Means for Colorado
With Laubacher's win, Colorado's delegation to the U.S. House now favours Democrats 7–1. That is a remarkable position for a state that, within living memory, sent a Republican delegation to Washington. Colorado has moved steadily towards the Democrats over the past two decades, and the 2026 result completes that shift in the House.
For the district itself, the change is more practical. The 4th District will now be represented by a Democrat for the first time since 1973, and by a retired Navy rear admiral whose background is in military service rather than in the state legislature or in partisan politics. What that means in practice — for the district's farmers, its suburbs and its military communities — will become clear once she takes office.
What Happens Next
- Certification: Colorado counties finish tabulating and certifying ballots. The final totals may move slightly, but the outcome is settled.
- January 2027: Laubacher takes her seat when the new 120th Congress convenes, joining a House with a Democratic majority.
- Boebert's next step: Boebert has not conceded as of the latest reporting, and she has not said publicly what she plans to do next.
- The district: both parties will now be asking the same question — whether 2026 was a one-off upset in a wave year, or the start of a genuinely competitive era for Colorado's 4th District.
For now, the fact stands: a seat that forecasters rated "likely Republican," held by one of the most prominent Republicans in the House, was won by a retired Navy rear admiral who had never held elected office — by about 3,300 votes out of more than 380,000 cast.
Frequently Asked Questions
Who won Colorado's 4th Congressional District in 2026?
Democrat Eileen Laubacher, a retired Navy rear admiral, defeated three-term Republican Representative Lauren Boebert. Laubacher finished with 48.8 percent of the vote to Boebert's 47.9 percent.
How close was the Boebert race?
Very close. Laubacher led by about 3,300 votes out of more than 380,000 cast — a margin of less than one percentage point. A third candidate, Douglas Mangeris, took 3.3 percent.
Who is Eileen Laubacher?
Eileen Laubacher is a retired rear admiral in the United States Navy. She declared victory on Monday 9 November 2026 and attended new-member orientation at the Capitol the same day. She had never held elected office before winning the House seat.
Has Lauren Boebert conceded?
As of the latest reporting, no. Boebert told reporters outside the Capitol on Wednesday 11 November that she was not conceding because votes were still being counted, and her campaign said it was monitoring the count.
Will there be a recount in Colorado's 4th District?
No automatic recount. Colorado law requires one only if the margin is within 0.5 percent of the leading candidate's vote total, and the Denver Post reported that Laubacher's lead was outside that threshold.
Why was the race a surprise?
Forecasters rated the seat 'likely Republican' before Election Day, and it had not elected a Democrat since 1973. Laubacher's win was only the second Democratic victory in the district in more than 50 years.
When does Eileen Laubacher take office?
She is expected to take her seat when the new 120th Congress convenes in January 2027, after Colorado counties finish certifying the final vote totals.
What does the result mean for Colorado's House delegation?
Colorado's delegation to the U.S. House now favours Democrats 7–1, completing a shift that has been building for two decades in a state that once sent a Republican delegation to Washington.
Related Reading
- Scott Colom: Mississippi's First Black Senator Since 1881 — another upset from the 2026 midterms.
- Democrats' 2026 Midterm Win: Mamdani's Story — the full story of the Democrats' 2026 sweep.
- New Political Campaigns 2026–2028 — the campaigns shaping the next two years of American politics.
Sources
- Associated Press (via KCAU) — Rep. Lauren Boebert of Colorado loses House seat to Democrat Eileen Laubacher — AP report of 13 November 2026: Laubacher defeated Boebert, a three-term Republican, in 'the most lopsided election in half a century.'
- Political.org — Democrat Eileen Laubacher Ousts Rep. Lauren Boebert — final figures (48.8% to 47.9%), Decision Desk HQ call, district history since 1973 and the 7–1 Colorado delegation.
- iHeart — Democrat Laubacher Claims Victory Over Boebert in Colorado — 9 November vote counts, the automatic-recount threshold, the Denver Post reporting and CNN's projection.
Vote totals are as reported at the time the race was called on 13 November 2026. Final certified totals may differ slightly once Colorado counties complete certification.