Horizon · our Election Day forecast: polls, plus fundamentals like incumbency, fundraising and past results.

Pulse · polls only: where the races stand today, with no fundamentals and wider uncertainty.

What's the difference?

Indiana › Indiana House of Representatives · State legislature · November 3, 2026 · Updated Oct 16, 2026

Indiana House District 15

Slager is clearly favored to win: Slager wins in 19 of every 20 simulations.

Oberman (D)
6%
chance of winning
Slager (R)
94%
Average margin
R+11.6
80% of outcomes
R+21 to R+3
Partisan lean
R+19
Polls
No pollsmodel only

Slager is clearly favored to win: Slager wins in 9 of every 10 simulations.

Oberman (D)
10%
chance of winning
Slager (R)
90%
Average margin
R+12.1
80% of outcomes
R+25 to Even
Partisan lean
R+19
Polls
No pollsmodel only

How this race is decided

Simple-majority veto override

A majority of the members elected to each chamber can override the governor's veto.

Range of outcomes

Final margin across our simulations; the white dashes mark the middle 80%.

R+11.6R+30R+20R+10EvenD+10D+20D+30
R+12.1R+40R+20EvenD+20D+40

How the odds have moved

Chance of winning by forecast date.

0%25%50%75%100%AugSepOctNovNov 3Oberman 6%Slager 94%

Updated nightly. Each day is the current model run on the polls that had ended by then (how).

0%25%50%75%100%AugSepOctNovNov 3Oberman 10%Slager 90%

Updated nightly. Each day is the current model run on the polls that had ended by then (how).

The candidates

What goes into the forecast

Every ingredient's estimate of the final margin.

National environment
D+9.5Election Day forecast
Indiana state offices
+1.3Polls for governor, statewide and legislative races · details
Environment here
D+10.8Used by the fundamentals
Swing reaching this office
58%Of a shift in the environment, from past legislative races since 2016
Midwest adjustment
+0.3How legislative races in the region have run against lean and environment lately
← RepublicanDemocratic →Lean + environmentUsual vote, shifted by 58% of the environment andthe Midwest adjustmentR+9.2Fundamentals modelAdds incumbency, past results, money andexperienceR+12.1Polls in similar placesPolling of similar races in Indiana and look-alikeplacesR+11.4Polling averageNo polls of this racenot availableHorizon forecastPolls + fundamentals, projected to Election DayR+11.7Pulse forecastPolls (and polling of similar places) only, todayR+12.1

Each estimate is a margin before national and statewide uncertainty is simulated. Horizon blends polls, fundamentals and a little of the similar-places estimate, weighting each by how precise it is; Pulse uses polls and similar places only.

Fundamentals inputs
Incumbency (+1 D, −1 R)-1
Fundraising edge (log ratio of individual money)-0.71
Elected-experience edge-0.67
First-term incumbent0
Seat's last result vs. expectation-4.92
Incumbent's last result vs. expectation-4.92

Polls

No public polls of this race. The forecast relies on fundamentals and on polling of similar places in the state.

The district

Lean R+19: how much more Democratic or Republican than the nation it votes for president.

Presidential vote

← RepublicanDemocratic →2016 presidentR+16.9R+19.1 vs. nation2020 presidentR+15.3R+19.9 vs. nation2024 presidentR+20.5R+19.0 vs. nation

Precinct results re-aggregated to the current district lines.

Who lives here

Population
71,796
People per km²
611
Adults with a B.A.+
37%
White, no degree
50%of adults
  • White 77%
  • Hispanic 14%
  • Black 4%
  • Asian 2%
  • Other / multiracial 3%

American Community Survey 2020–2024, aggregated from census tracts.

Past results

Results in the same-numbered district; earlier elections may have used different lines.

2024

37,161 votes · R+26.7
✓ Hal Slager (R)63.3%
John "jack" Walter (D)36.7%

2024 President Vote in this district

37,883 two-party votes · R+20.5 · R+19.0 vs. the nation
✓ Donald Trump (R)60.2%
Kamala Harris (D)39.8%

2022

25,759 votes · R+26.5
✓ Hal Slager (R)63.2%
Chris Kukuch (D)36.8%

2020 Earlier district lines

34,564 votes · R+3.1
✓ Hal Slager (R)51.5%
Chris Chyung (D)48.5%

2020 President Vote in this district

36,957 two-party votes · R+15.3 · R+19.9 vs. the nation
✓ Donald Trump (R)57.7%
Joe Biden (D)42.3%

2016 President Vote in this district

29,603 two-party votes · R+16.9 · R+19.1 vs. the nation
✓ Donald Trump (R)58.5%
Hillary Clinton (D)41.5%