New Jersey’s 12th District House Race 2026
New Jersey’s 12th Congressional District, anchored by Trenton and parts of Mercer and Middlesex counties, heads to the polls in November 2026 to elect its next U.S. House representative. The district has leaned Democratic in recent cycles, but redistricting shifts and candidate quality can still shape competitiveness. Party primaries will determine the final matchup before the general election.
Why Markets Are Watching
Control of the House often comes down to a handful of competitive districts, and NJ-12’s outcome feeds directly into the broader national balance of power. Local issues like affordability, infrastructure, and regional economic conditions will shape turnout. The result also signals how suburban and urban voters in New Jersey are trending ahead of future statewide contests.
How Prediction Markets Frame the Race
The contract reduces a multi-candidate campaign into a binary question: which party’s nominee wins the seat. Traders are effectively weighing incumbency strength, primary outcomes, and turnout patterns rather than tracking individual candidates. It isolates partisan control of the seat as the single variable that matters, stripping away the noise of local campaign dynamics.
Related terms
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United States House of Representatives -
Redistricting -
New Jersey -
Trenton, New Jersey -
Mercer County, New Jersey -
Middlesex County, New Jersey -
Gregg Alexander -
New Jersey's 12th congressional district
Total Volume
$52.3k
Kalshi $13.3k · Polymarket $39k
Leading Market
Adam Hamawy
Kalshi 98% · Polymarket 98%
Adam Hamawy Volume
$39.8k
Kalshi $9.7k · Polymarket $30.1k
Adam Hamawy 24h Change
-1.00%
Kalshi 0.00% · 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 |
|---|---|---|---|---|---|---|
| Adam HamawyDemocratic Party | 99.4¢ | 7.0% | , trade Adam Hamawy on Kalshi (opens in a new tab) | 98.0¢ | 5% | , trade Adam Hamawy on Polymarket (opens in a new tab) |
| Gregg AlexanderRepublican Party | 3.2¢ | 7.0% | , trade Gregg Alexander on Kalshi (opens in a new tab) | 4.0¢ | 5% | , trade Gregg Alexander 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) |
|---|---|---|---|
| Adam HamawyDemocratic Party | $39,788.45 | ||
| Gregg AlexanderRepublican Party | $12,501.96 |