California’s 50th District House Race: Who Will Win
California’s 50th Congressional District, covering parts of San Diego County including Oceanside and Escondido, will elect a new U.S. House member in the 2026 midterms. The seat has leaned Democratic in recent cycles, but district boundaries and candidate fields can shift the competitive picture each election. Primary contenders from both major parties are expected to emerge in the months ahead.
Why Markets Are Watching
Control of the U.S. House often comes down to a handful of competitive districts, and Southern California races can swing on turnout and local issues like housing costs and immigration. The outcome here feeds into the broader national battle for House control in 2026. Local results also signal how suburban San Diego voters are trending heading into future elections.
How Prediction Markets Frame the Race
The core question traders are weighing is simple: which party, and which individual candidate, ultimately captures the seat. Separate contracts isolate party control from specific named contenders, letting participants express views on both the broad partisan outcome and the finer-grained primary and general election dynamics. This structure captures how a single district race can be decomposed into multiple tradeable layers of certainty.
Total Volume
$53.2k
Kalshi $2.7k · Polymarket $50.5k
Leading Market
Scott Peters
Kalshi 98% · Polymarket 97%
Scott Peters Volume
$18.6k
Kalshi $1k · Polymarket $17.6k
Scott Peters 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 |
|---|---|---|---|---|---|---|
| Scott PetersDemocratic Party | 98.1¢ | 7.0% | , trade Scott Peters on Kalshi (opens in a new tab) | 97.0¢ | 5% | , trade Scott Peters on Polymarket (opens in a new tab) |
| Stephen CohenRepublican Party | 3.6¢ | 7.0% | , trade Stephen Cohen on Kalshi (opens in a new tab) | — | — | — |
| Steve CohenRepublican Party | — | — | — | 4.0¢ | 5% | , trade Steve Cohen 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) |
|---|---|---|---|
| Scott PetersDemocratic Party | $18,563.03 | ||
| Stephen CohenRepublican Party | $1,730.06 | No market | |
| Steve CohenRepublican Party | $32,956.75 | No market |