Washington’s 8th District House Race: Who Will Win
Washington’s 8th Congressional District, a suburban and exurban seat stretching from the Seattle metro area into the Cascades, is up for grabs in the 2026 midterms. The district has swung between parties in recent cycles, making it a frequently contested battleground in the U.S. House. Candidates from both major parties, along with potential third-party or independent contenders, are expected to compete for the seat.
Why Markets Are Watching
Control of the House often comes down to a handful of competitive districts like WA-08, where shifting suburban demographics and local economic conditions can swing outcomes. The result will shape which party sets the legislative agenda and holds oversight power in Washington, D.C. Local voters’ priorities on cost of living, housing, and regional growth are central to the contest.
How Prediction Markets Frame the Race
The core question traders are weighing is binary at heart: which party ultimately claims the seat, even though multiple named candidates appear on the board. This isolates partisan control as the tradeable outcome rather than any single candidate’s personal popularity. Activity here effectively functions as a localized read on broader House majority sentiment heading into the midterms.
Related terms
Total Volume
$23.1k
Kalshi $5.6k · Polymarket $17.5k
Leading Market
Kim Schrier
Kalshi 93% · Polymarket 99%
Kim Schrier Volume
$14.4k
Kalshi $4.2k · Polymarket $10.2k
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 |
|---|---|---|---|---|---|---|
| Kim SchrierDemocratic Party | 99.3¢ | 7.0% | , trade Kim Schrier on Kalshi (opens in a new tab) | 99.0¢ | 5% | , trade Kim Schrier on Polymarket (opens in a new tab) |
| Spencer MelineRepublican Party | 3.6¢ | 7.0% | , trade Spencer Meline on Kalshi (opens in a new tab) | 3.0¢ | 5% | , trade Spencer Meline 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) |
|---|---|---|---|
| Kim SchrierDemocratic Party | $14,426.19 | ||
| Spencer MelineRepublican Party | $8,713.02 |