Tennessee’s 8th Congressional District House Race 2026
Tennessee’s 8th Congressional District heads to voters in November 2026 to pick its U.S. House representative. The district, anchored by rural and suburban communities stretching from Memphis’s outer suburbs to west and middle Tennessee, has leaned solidly Republican in recent cycles. Candidates from both major parties are expected to compete for the open or incumbent-held seat as part of the broader midterm battle for House control.
Why Markets Are Watching
Control of the U.S. House hinges on dozens of races like this one, where district lean and candidate strength shape the national majority math. A strongly Republican seat like TN-08 is not usually competitive, but midterm turnout swings and candidate missteps can narrow margins unexpectedly. Results here help gauge broader voter sentiment heading into 2026.
How Prediction Markets Frame the Race
The core question traders face is simple: which party’s nominee wins the seat. Because TN-08 is historically safe Republican territory, the market effectively isolates how much, if any, uncertainty exists around that baseline expectation. Shifts in trading activity can signal whether participants see this race as a genuine toss-up or a formality within the larger fight for House control.
Related terms
Total Volume
$44.5k
Kalshi $10.8k · Polymarket $33.7k
Leading Market
David Kustoff
Kalshi 98% · Polymarket 97%
David Kustoff Volume
$26k
Kalshi $5.1k · Polymarket $20.9k
David Kustoff 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 |
|---|---|---|---|---|---|---|
| David KustoffRepublican Party | 96.6¢ | 7.0% | , trade David Kustoff on Kalshi (opens in a new tab) | 97.0¢ | 5% | , trade David Kustoff on Polymarket (opens in a new tab) |
| Heidi KühnDemocratic Party | 5.2¢ | 7.0% | , trade Heidi Kühn on Kalshi (opens in a new tab) | 4.0¢ | 5% | , trade Heidi Kühn 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) |
|---|---|---|---|
| David KustoffRepublican Party | $26,000.34 | ||
| Heidi KühnDemocratic Party | $18,512.37 |