Tennessee 12026 HOUSE FORECAST
2026 Tennessee 1st District House Forecast:
Proprietary forecast for Tennessee's 1st congressional district House election between Democrat TBD and Republican Diana Harshbarger. This page will update with a daily set of 100,000 new simulations as race fundamentals change in order to produce race odds, projected margin, and forecasted vote share. This page also includes polling averages when available.
The 2026 Tennessee 1st District House election features Democrat TBD and Republican Diana Harshbarger. Incumbent Representative Diana Harshbarger is seeking reelection to a fourth term. In 2024, Donald Trump won Tennessee's 1st congressional district by 29.5%, and the election for the district's House seat is rated as solid Republican in 2026. Tennessee conducted mid-decade redistricting prior to the midterms, and the state's new district map benefits Republicans overall.
- Year
- 2026
- Race
- House
- District
- TN-1
- Democratic candidate
- TBD
- Republican candidate
- Diana Harshbarger
- Incumbent / open seat
- Diana Harshbarger
- Forecast rating
- Solid R
- Projected vote
- 30.0% D / 70.0% R
- Projected margin
- R +40.0
- Forecast odds
- 0.1% D / 99.9% R
- Forecast last updated
- 12:00 AM on July 2, 2026
- Polling average
- —
- Polling average margin
- —
- Polling last updated
- —
- Polls included
- 0
- Latest poll
- —