Colorado’s 4th District House Race 2026
Colorado’s 4th Congressional District, a sprawling, heavily Republican stretch of the Eastern Plains and parts of the Front Range, holds its House election in November 2026. The seat has long been a GOP stronghold, historically decided in the Republican primary rather than the general. Voters will choose a representative to serve a two-year term in the U.S. House.
Why Markets Are Watching
Control of the House hinges on dozens of contests like this one, even in districts considered safe. A shift in this seat would signal deeper turnout or realignment trends across rural, conservative-leaning America. Primary dynamics and candidate quality could still produce surprises despite the district’s partisan lean.
How Prediction Markets Frame the Race
The core question is simple: which party’s nominee wins the general election. But traders are effectively weighing whether an entrenched Republican advantage holds against any late shift in candidate strength or national mood. Individual candidate contracts let traders isolate primary outcomes from the broader partisan question, separating personality-driven risk from structural party dominance.
Related terms
Total Volume
$334.9k
Kalshi $215.2k · Polymarket $119.7k
Leading Market
Lauren Boebert
Kalshi 63% · Polymarket 63%
Lauren Boebert Volume
$145.4k
Kalshi $101.1k · Polymarket $44.3k
Lauren Boebert 24h Change
-2.00%
Kalshi -2.00% · Polymarket -1.00%
Calculate Your Potential Return
- Kalshi(opens in a new tab) 7.0% fee
- Polymarket(opens in a new tab) 5.0% fee
| Market | Kalshi Yes | Kalshi Fee | Kalshi Payout | Polymarket Yes | Polymarket Fee | Polymarket Payout |
|---|---|---|---|---|---|---|
| Lauren BoebertRepublican Party | 63.0¢ | 7.0% | , trade Lauren Boebert on Kalshi (opens in a new tab) | 63.0¢ | 5% | , trade Lauren Boebert on Polymarket (opens in a new tab) |
| Eileen LaubacherDemocratic Party | 38.0¢ | 7.0% | , trade Eileen Laubacher on Kalshi (opens in a new tab) | 38.0¢ | 5% | , trade Eileen Laubacher on Polymarket (opens in a new tab) |
* Estimates if candidate wins. Actual returns may vary.
All Markets
| Market | Total Volume | Kalshi(opens in a new tab) | Polymarket(opens in a new tab) |
|---|---|---|---|
| Lauren BoebertRepublican Party | $145,411.34 | ||
| Eileen LaubacherDemocratic Party | $189,492.20 |