Indiana 8th — House 2026 General Election
The Indiana 8th — House general election is on November 3, 2026. The model makes Republican Mark Messmer the heavy favorite at 100%, with Democrat Mary Allen at 0%. Mark Messmer is the incumbent, leads the field in reported fundraising, and has the most tracked endorsements. No public polling is available for this race, so the forecast leans on fundraising, endorsements, candidate profiles, and historical results.
Current win probabilities
- Mark Messmer (incumbent) — 100%
- Mary Allen — 0%
Probabilities update daily from polls, fundraising, endorsements, and historical results.