2026 forecast · Indiana 8th

Mark Messmer is all but certain to win Indiana's 8th District.

Mary Allen vs Mark Messmer. The model has Messmer ahead by 17.5 points, winning 99 percent of 2,000 simulated elections.

Safe RModel R +17.5Updated October 22, 2026
Mary Allen
Democrat
41.2%
86,184 projected votes
Mark Messmer
Republican
58.8%
122,781 projected votes
99%Messmer
1%Allen
Messmer all but certainEach square is one simulated election night, Messmer wins about 99 of 100
RatingSafe R99% chance for Messmer
Model marginR +17.5No polls in the race
80 percent rangeR +8.0 to R +27.12,000 simulations
Projected votes208,965Messmer 58.8%

The district map

Every district in the state, shaded by its rating

Indiana districts

9 districts
Safe DLikely DLean DToss upLean RLikely RSafe R

Vote share

Each candidate's projected share and the range of 80 percent of simulations

Mary AllenDemocrat · 1% to win
41.2%
Mark MessmerRepublican · 99% to win
58.8%

Scale runs from 25 to 75 percent. The dot is the forecast, the band is the 80 percent range and the brighter tick marks 50 percent.

Projected district vote

208,965 votes
CandidateVotesShare
Mark Messmer R122,78158.8%
Mary Allen D86,18441.2%
Total208,965100%

Each candidate's expected vote in the On Point simulation, at the forecast's projected turnout.

The trend

Each side's chance of winning over the forecast's recent updates

0%25%50%75%100%1% Allen99% Messmer16 updates agoToday

Polling

Every poll in the average, and how the model reads it

Polls of the race

PollsterSampleAgeMargin
On Point averageWeighted averageNo polls

Each margin is the poll as the pollster published it. The forecast counts every poll after its house effect and the undecided split, which is what the trail above shows; hover a margin for the counted value. Lean R and Lean D mark partisan leaning firms.

Model margin
Messmer +17.5
Chance of winning
Mary Allen1%
Mark Messmer99%
Simulated vote
Mary Allen41.2%
Mark Messmer58.8%
How the model gets there
Partisan leanD +36.0
FundamentalsR +17.4
With pollsR +17.4
Early vote turnoutR +0.1
With early voteR +17.5

Read from 0 ballots cast so far in Indiana, against the party mix the forecast expected of them, with similar states and primary turnout. Early vote tracker

How we got here

From the state's partisan lean to the forecast, one stage at a time

D +43R +43Partisan leanthe state's baselineD +36.0Fundamentalsapproval, economy, candidatesR +17.4With pollsno pollsR +17.4With early voteturnout so farR +17.5
Methodology
Every county is rebuilt by simulating voters going to the polls, 2,000 times, from On Point Polling survey data, past results, and the polling average. How the model works.