# Colorado's 3rd District margin of victory

Colorado's 3rd District

Updated: May 8, 2026

Category: Elections

Tags: US Elections

HTML: /markets/elections/us-elections/colorado-s-3rd-district-margin-of-victory/

## Short Answer

**Key takeaway.** Both the **model** and the **market** expect Democrats to win Colorado's 3rd District by 3 or more points, with no compelling evidence of mispricing.

## Key Claims (January 2026)

**- - Incumbent Jeff Hurd maintains a substantial financial lead over Democratic challengers.** - Non-partisan forecasters like Cook and Sabato's rate CO-03 "Likely Republican."
- Jeff Hurd won the 2024 general election by a 5.0 point margin.
- Hurd's potential vulnerability in the Republican primary appears a key factor.
- Early polling data suggests a competitive 2026 general election in Colorado's 3rd.

### Why This Matters (GEO)

- AI agents extract claims, not arguments.
- Improves citation probability in summaries and answer cards.
- Enables fact stitching across multiple sources.

## Executive Verdict

**Key takeaway.** **Model**'s **19.2%** **probability** is below the 25c **market** price, given incumbent Hurd's strong position implying a larger victory margin.

### Who Wins and Why

| Outcome | Market | Model | Why |
| --- | --- | --- | --- |
| Democrats, 3+ pts | 25.0% | 19.2% | A Democratic victory exceeding three points faces headwinds from the R+5 PVI and incumbent's strong support. |
| Democrats, 6+ pts | 14.0% | 10.8% | A Democratic victory exceeding six points faces substantial headwinds from the R+5 PVI and incumbent's strong support. |

## Model vs Market

| Outcome | Market Probability | Octagon Model Probability |
| --- | --- | --- |
| Democrats, 3+ pts | 25.0% | 19.2% |
| Democrats, 6+ pts | 14.0% | 10.8% |

- Expiration: November 3, 2027

## Market Behavior & Price Dynamics

This market has shown a significant upward trend, moving from a low of 2.0% to its current price of 25.0%. The most prominent price action was a sharp 10.0 percentage point spike on May 06, 2026, which saw the probability jump from 15.0% to 25.0%. According to the provided context, this increase likely stemmed from the release of a national generic ballot poll that showed a significant advantage for Democrats. This suggests that traders reacted to national-level political sentiment and extrapolated its potential impact on this specific district race, even though the district is described as strongly Republican.

The total volume of 1,607 contracts indicates a moderate level of interest in the market over its lifetime. However, the sample data shows no volume during the recent price spike, which could suggest the move was initiated by a few traders or that broader market conviction has not yet solidified at this new level. The price of 25.0% has acted as a point of resistance or consolidation since the spike. Overall, the chart reflects a marked shift in market sentiment. While the market initially priced in a very low probability, in line with the district's partisan lean, the recent surge suggests a growing perception that the race may become more competitive, driven by external political factors.

## Significant Price Movements

#### 📈 May 06, 2026: 10.0pp spike

Price increased from 15.0% to 25.0%

**Outcome:** Democrats, 3+ pts

**What happened:** The 10.0 percentage point spike likely stemmed from an NPR national generic ballot poll released on May 06, 2026, indicating Democrats held a +10 percentage point advantage nationally due to factors like gas prices and Trump's unpopularity [[^]](https://www.kunc.org/npr-news/2026-05-06/democrats-gain-midterm-edge-npr-poll-shows-and-u-s-pauses-project-freedom)[[^]](https://www.kunc.org/npr-news/2026-05-06/poll-trump-blamed-for-gas-prices-as-democrats-gain-midterm-edge). This national sentiment appears to have fueled a belief among traders that Democrats might perform exceptionally well across the board, including in Republican-leaning districts like CO-03 [[^]](https://ballotpedia.org/Colorado%27s_3rd_Congressional_District)[[^]](https://ballotpedia.org/Colorado%27s_3rd_Congressional_District_election,_2026). However, there is no evidence of specific CO-03 polling or social media activity on that date predicting a Democratic 3+ point victory in this particular district [[^]](https://www.cookpolitical.com/house/race/482456). Social media was irrelevant, as there is no provided evidence of relevant posts driving this specific market move.

## Contract Snapshot

This market resolves to YES if the Democratic Party wins the 2026 U.S. House of Representatives election in Colorado's 3rd District by a margin of 3 percentage points or more, calculated without rounding from official election results. It resolves to NO if the Democratic Party wins by less than 3 percentage points, ties, or loses the election. The election is scheduled for November 3, 2026, and the market will close upon the publication of certified election results, but no later than November 3, 2027, 11:00 am EDT.

## Market Discussion

Republican Jeff Hurd won Colorado's 3rd Congressional District election against Democrat Adam Frisch by a margin of 19,804 votes, or 5.0 percentage points (pp), with Hurd receiving 50.8% to Frisch's 45.8% of the 397,553 total votes cast [[^]](https://www.washingtonpost.com/elections/results/2024/11/05/colorado-house-district-3/)[[^]](https://ballotpedia.org/Colorado%27s_3rd_Congressional_District_election,_2024). This margin of victory for Hurd, with the race called on December 6, 2024, was notably larger than the 0.2 pp margin in the 2022 race between the incumbent and Frisch [[^]](https://www.washingtonpost.com/elections/results/2024/11/05/colorado-house-district-3/)[[^]](https://ballotpedia.org/Colorado%27s_3rd_Congressional_District_election,_2024), and was consistent with pre-election predictions that favored Republicans for Hurd at 57-62% [[^]](https://worldcoin.polymarket.com/event/co-03-house-election-winner).

## Market Data

| Contract | Yes Bid | Yes Ask | Last Price | Volume | Open Interest |
| --- | --- | --- | --- | --- | --- |
| Democrats, 3+ pts | 25% | 26% | 25% | $1,607 | $459 |
| Democrats, 6+ pts | 14% | 15% | 14% | $1,524 | $577 |

## What do voter registration trends in Colorado's 3rd District since the 2024 election indicate about a potential shift in the electorate?

Democratic Active Voters (April 2026) | 1,003,187 (down 3.7% since 2024) [[^]](https://www.coloradopolitics.com/2026/04/30/the-uncharted-implications-of-increasing-unaffiliateds-ahead-of-colorados-primaries-paula-noonan/) |
Republican Active Voters (April 2026) | 910,438 (down 1.7% since 2024) [[^]](https://www.coloradopolitics.com/2026/04/30/the-uncharted-implications-of-increasing-unaffiliateds-ahead-of-colorados-primaries-paula-noonan/) |
Unaffiliated Active Voters (April 2026) | 2,032,366 [[^]](https://www.coloradopolitics.com/2026/04/30/the-uncharted-implications-of-increasing-unaffiliateds-ahead-of-colorados-primaries-paula-noonan/) |

**Colorado voter registration shows a notable shift since 2024**

Colorado voter registration shows a notable shift since 2024. Since the 2024 election, Colorado has experienced a decline in both Democratic and Republican party affiliations statewide, alongside a significant surge in unaffiliated voters. By April 2026, active Democratic voters decreased by **3.7%** to 1,003,187, while active Republican voters saw a **1.7%** decline, reaching 910,438. In stark contrast, active unaffiliated voters climbed to 2,032,366 during the same period, now constituting the largest bloc across all eight Colorado congressional districts [[^]](https://www.coloradopolitics.com/2026/04/30/the-uncharted-implications-of-increasing-unaffiliateds-ahead-of-colorados-primaries-paula-noonan/)[[^]](https://sentinelcolorado.com/state-and-region-news/colorado-sees-surge-in-unaffiliated-voters-decline-in-party-registrations)[[^]](https://coloradosun.com/2024/04/12/unaffiliated-20240412/).

Unaffiliated voter growth is particularly strong among younger demographics. Statewide, unaffiliated voters experienced a **3.1%** growth between January and July 2025, adding approximately 60,000 new voters [[^]](https://sentinelcolorado.com/state-and-region-news/colorado-sees-surge-in-unaffiliated-voters-decline-in-party-registrations). This trend is also pronounced among younger individuals; the 18-24 age group has seen a **16%** reduction in both Democratic and Republican registrations since 2024, while unaffiliated registrations within this group increased by **10%** [[^]](https://www.coloradopolitics.com/2026/04/30/the-uncharted-implications-of-increasing-unaffiliateds-ahead-of-colorados-primaries-paula-noonan/). Although Colorado's 3rd Congressional District has a Cook PVI of R+5, specific numerical changes for this particular district were not provided in the available data [[^]](https://ballotpedia.org/Colorado%27s_3rd_Congressional_District). However, the statewide patterns of declining partisan affiliation and increasing unaffiliated voters are consistent across all eight congressional districts, including the 3rd [[^]](https://www.coloradopolitics.com/2026/04/30/the-uncharted-implications-of-increasing-unaffiliateds-ahead-of-colorados-primaries-paula-noonan/)[[^]](https://sentinelcolorado.com/state-and-region-news/colorado-sees-surge-in-unaffiliated-voters-decline-in-party-registrations)[[^]](https://coloradosun.com/2024/04/12/unaffiliated-20240412/).

## How might the outcome of the June 30, 2026 Democratic primary affect general election polling and fundraising against Jeff Hurd?

Alex Kelloff Delegate Support | 51% [[^]](https://www.chieftain.com/story/news/2026/03/31/colorado-democrats-select-2026-co-3-primary-candidates/89385465007/) |
Jeff Hurd Total Raised | $2.99M in 2026 [[^]](https://ballotpedia.org/Jeff_Hurd)[[^]](https://ballotpedia.org/Colorado%27s_3rd_Congressional_District_election,_2026_(June_30_Republican_primary)) |
District PVI | R+5 [[^]](https://www.cookpolitical.com/house/race/482456)[[^]](https://ballotpedia.org/Colorado%27s_3rd_Congressional_District_election,_2026_(June_30_Republican_primary)) |

**The Democratic primary presents a close contest influencing future Democratic efforts**

The Democratic primary presents a close contest influencing future Democratic efforts. Alex Kelloff has secured **51%** of delegates and raised over **$1** million, while Dwayne Romero, a veteran, holds **49%** of delegates [[^]](https://www.chieftain.com/story/news/2026/03/31/colorado-democrats-select-2026-co-3-primary-candidates/89385465007/)[[^]](https://soprissun.com/2-roaring-fork-valley-candidatespunch-tickets-to-congressional-primary/)[[^]](https://www.aspentimes.com/news/colorado-republican-rep-jeff-hurd-dwayne-romero/). A victory for Kelloff in the June 30, 2026 primary is expected to boost Democratic polling and fundraising more significantly than a win for Romero, primarily due to Kelloff's existing resources and head start [[^]](https://www.denverpost.com/2026/03/04/democrats-third-congressional-district-dwayne-romero-alex-kelloff/)[[^]](https://www.aspentimes.com/news/colorado-republican-rep-jeff-hurd-dwayne-romero/)[[^]](https://www.aspentimes.com/news/pitco-democratic-party-delegates-majority-support-alex-kelloff/).

Incumbent Republican Jeff Hurd holds a strong financial and electoral position. Hurd has demonstrated substantial financial standing, having raised **$2.99** million in 2026 and maintaining **$1.9** million cash-on-hand as of March 2026 [[^]](https://ballotpedia.org/Jeff_Hurd)[[^]](https://ballotpedia.org/Colorado%27s_3rd_Congressional_District_election,_2026_(June_30_Republican_primary)). The district, with a PVI of R+5, saw Hurd secure a 5-point victory in 2024, the same year Donald Trump won by 10 points [[^]](https://ballotpedia.org/Colorado%27s_3rd_Congressional_District_election,_2026_(June_30_Republican_primary))[[^]](https://www.cookpolitical.com/house/race/482456). This context leads the Cook Political Report to rate the race as "Likely R," and Polymarket predicts a Republican win with a 57-**62%** **probability** [[^]](https://www.cookpolitical.com/house/race/482456)[[^]](https://worldcoin.polymarket.com/event/co-03-house-election-winner).

## How does the fundraising and cash-on-hand of the leading Democratic candidate compare to that of incumbent Jeff Hurd for the 2026 election cycle?

Jeff Hurd Total Raised | $2,386,940 (February 2026) [[^]](https://highcountryadvocate.org/colorado-2026-federal-campaign-finance-complete-data-analysis/) |
Alex Kelloff Total Raised | $855,170 (February 2026) [[^]](https://highcountryadvocate.org/colorado-2026-federal-campaign-finance-complete-data-analysis/) |
Jeff Hurd Cash on Hand | $2,158,638 (February 2026) [[^]](https://highcountryadvocate.org/colorado-2026-federal-campaign-finance-complete-data-analysis/) |

**Incumbent Jeff Hurd holds a substantial financial lead over Democratic challengers**

Incumbent Jeff Hurd holds a substantial financial lead over Democratic challengers. As of February 2026, Hurd had accumulated **$2,386,940** in total fundraising and maintained **$2,158,638** in cash on hand [[^]](https://highcountryadvocate.org/colorado-2026-federal-campaign-finance-complete-data-analysis/). This robust financial standing positions him well ahead of the current leading Democratic fundraiser. Hurd's fundraising total is approximately 2.8 times greater than that of Alex Kelloff, and his cash on hand is roughly 3.5 times larger [[^]](https://highcountryadvocate.org/colorado-2026-federal-campaign-finance-complete-data-analysis/).

Alex Kelloff leads Democratic primary fundraising, yet trails the incumbent significantly. Kelloff, the current frontrunner among Democratic candidates in fundraising, had raised **$855,170** and reported **$613,518** in cash on hand as of February 2026 [[^]](https://highcountryadvocate.org/colorado-2026-federal-campaign-finance-complete-data-analysis/). His first-quarter 2026 fundraising included **$73,000** in contributions, supplemented by a **$120,000** loan to his campaign [[^]](https://coloradonewsline.com/2026/04/20/colorado-democratic-house-challengers-rake-in-cash/). Another Democratic candidate, Dwayne Romero, who entered the race in March 2026, raised **$226,000** in Q1 and contributed a **$280,000** loan to his own campaign [[^]](https://coloradonewsline.com/2026/04/20/colorado-democratic-house-challengers-rake-in-cash/). The Democratic primary for Colorado's 3rd congressional district is set for June 30, 2026, and a nominee has not yet been chosen as of May 8 [[^]](https://apps.npr.org/primary-election-results-2026/states/CO.html)[[^]](https://soprissun.com/2-roaring-fork-valley-candidatespunch-tickets-to-congressional-primary/).

## What public polling data is available for the Colorado's 3rd District general election matchup for the 2026 cycle, and how reliable has it been historically?

Hurd Polling (March 2026) | 46% (Ragnar Research) [[^]](https://www.270towin.com/2026-house-polls/colorado/district-3) |
Kelloff Polling (March 2026) | 41% (Ragnar Research) [[^]](https://www.270towin.com/2026-house-polls/colorado/district-3) |
Republican CO-03 House probability | ~57% (Polymarket) [[^]](https://worldcoin.polymarket.com/event/co-03-house-election-winner) |

**Early polling data indicates a competitive 2026 general election in CO-03**

Early polling data indicates a competitive 2026 general election in CO-03. A Ragnar Research poll, conducted on March 20, 2026, for Colorado's 3rd District general election matchup, showed incumbent Hurd with **46%**, Kelloff with **41%**, and Other candidates receiving **13%** [[^]](https://www.270towin.com/2026-house-polls/colorado/district-3). This survey involved 400 likely voters and had a reported margin of error of +/-**5%** [[^]](https://www.270towin.com/2026-house-polls/colorado/district-3). While specific information regarding the historical reliability of polling data for Colorado's 3rd District is unavailable, the district has an R+5 Partisan Voter Index [[^]](https://www.cookpolitical.com/house/race/482456).

Historical election results show Republican strength within the district. In 2024, incumbent Hurd (R) won with **50.8%** of the vote, and former President Trump carried the district by approximately 10 points that same year [[^]](https://ballotpedia.org/Colorado%27s_3rd_Congressional_District_election,_2026_(June_30_Democratic_primary)). The 2026 primaries are scheduled for June 30, with Democratic candidates including Kelloff and Romero, while Republican incumbent Hurd also faces a primary challenge [[^]](https://ballotpedia.org/Colorado%27s_3rd_Congressional_District_election,_2026_(June_30_Democratic_primary)). Current predictions from Polymarket suggest a Republican has approximately a **57%** **probability** of winning the CO-03 House seat in the general election [[^]](https://worldcoin.polymarket.com/event/co-03-house-election-winner).

## How do non-partisan election forecasters like the Cook Political Report and Sabato's Crystal Ball rate the competitiveness of Colorado's 3rd District for the 2026 cycle?

Sabato's Crystal Ball 2026 Rating | Likely Republican [[^]](https://centerforpolitics.org/crystalball/2026-house/)[[^]](https://www.270towin.com/2026-house-election/table/crystal-ball-2026-house-forecast) |
March 2026 Poll (Jeff Hurd) | 46% [[^]](https://www.270towin.com/2026-house-polls/colorado/district-3) |
Cook PVI | R+5 [[^]](https://www.cookpolitical.com/house/race/482456)[[^]](https://ballotpedia.org/Colorado%27s_3rd_Congressional_District_election,_2026_(June_30_Democratic_primary)) |

**Colorado's 3rd District is rated "Likely Republican" by Sabato's Crystal Ball**

Colorado's 3rd District is rated "Likely Republican" by Sabato's Crystal Ball. This rating for the 2026 election cycle was updated on May 6, 2026 [[^]](https://centerforpolitics.org/crystalball/2026-house/)[[^]](https://www.270towin.com/2026-house-election/table/crystal-ball-2026-house-forecast). The district exhibits a strong Republican lean, having supported Donald Trump by nearly 10 points and possessing a Cook Partisan Voting Index (PVI) of R+5 [[^]](https://www.cookpolitical.com/house/race/482456)[[^]](https://ballotpedia.org/Colorado%27s_3rd_Congressional_District_election,_2026_(June_30_Democratic_primary)). Republican Jeff Hurd first secured election in 2024, obtaining **50.8%** of the vote share in CO-03 [[^]](https://www.cookpolitical.com/house/race/482456).

Recent polling indicates CO-03 retains some competitiveness. Despite the district's Republican lean and its "Likely Republican" designation, a poll conducted in March 2026 showed Republican Jeff Hurd with **46%** support, while Democrat Kelloff garnered **41%** [[^]](https://www.270towin.com/2026-house-polls/colorado/district-3). The available facts did not explicitly state The Cook Political Report's specific competitiveness rating for CO-03 for the 2026 cycle.

## What Could Change the Odds

**The CO-03 district is rated as Likely R by Cook as of March 2026, with a Cook PVI implying a Trump +10 margin [[^]](https://www.cookpolitical.com/house/race/482456).** Incumbent Jeff Hurd (R) won the CO-03 2024 general election by 5.0 points (201,951 votes **50.8%** vs Adam Frisch (D) **45.8%**) after securing **41%** in a crowded primary [[^]](https://www.cookpolitical.com/house/race/482456)[[^]](https://www.thepolidex.com/leader/hurd). However, Hurd's potential vulnerability in the primary is a key factor; as of Feb 2026, Polymarket shows Hurd's GOP primary odds at **50%** against Hope Scheppelman at **41%** [[^]](https://polychances.com/polymarket-events/co-03-house-election-winner/)[[^]](https://worldcoin.polymarket.com/event/co-03-house-election-winner)[[^]](https://base.polymarket.com/event/co-03-republican-primary-winner)[[^]](https://hopeforcolorado.com/news-and-updates/polling-memo-colorado-district-3-republican-primary-dynamics/).

**Upcoming election dates represent critical catalysts that could shift market probabilities.** The filing deadline is approximately March 17, 2026, leading to the primary on June 30, 2026, and the general election on November 3, 2026 [[^]](https://ballotpedia.org/Colorado%27s_3rd_Congressional_District_election,_2026). These events will directly impact the current **market** sentiment, which indicates a Polymarket GOP general win at approximately 57-**70%** [[^]](https://polychances.com/polymarket-events/co-03-house-election-winner/)[[^]](https://worldcoin.polymarket.com/event/co-03-house-election-winner)[[^]](https://base.polymarket.com/event/co-03-republican-primary-winner). Kalshi markets are also tracking the party winner and margin of victory, such as Republican by 3+ points or Democrat by 3+ points [[^]](https://kalshi.com/markets/kxmidtermmov/midterm-margin-of-victory/kxmidtermmov-co03r)[[^]](https://kalshi.com/markets/kxmidtermmov/kxmidtermmov-co03d)[[^]](https://kalshi.com/markets/houseco3/house-co-3/houseco3-26).

## Key Dates & Catalysts

- **Expiration:** November 03, 2027
- **Closes:** November 03, 2027

## Decision-Flipping Events

- The CO-03 district is rated as Likely R by Cook as of March 2026, with a Cook PVI implying a Trump +10 margin [^] .
- Incumbent Jeff Hurd (R) won the CO-03 2024 general election by 5.0 points (201,951 votes **50.8%** vs Adam Frisch (D) **45.8%**) after securing **41%** in a crowded primary [^] [^] .
- However, Hurd's potential vulnerability in the primary is a key factor; as of Feb 2026, Polymarket shows Hurd's GOP primary odds at **50%** against Hope Scheppelman at **41%** [^] [^] [^] [^] .
- Upcoming election dates represent critical catalysts that could shift **market** probabilities.

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## Historical Resolutions

No historical resolution data available for this series.

## Disclaimer

This content is for informational and educational purposes only and does not constitute financial, investment, legal, or trading advice.
Prediction markets involve risk of loss. Past performance does not guarantee future results.
We are not affiliated with Kalshi or any prediction market platform. Market data may be delayed or incomplete.

### Data Sources & Model Transparency

**Data Sources:** Octagon Deep Research aggregates information from multiple sources including news, filings, and market data.

**Freshness:** Analysis is generated periodically and may not reflect the latest developments. Verify critical information from primary sources.

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