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?

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

Illinois Representative District 84

Haider is very likely to win: Haider wins in more than 99 of every 100 simulations.

Haider (D)
>99%
chance of winning
Scopa (R)
<1%
Average margin
D+40.1
80% of outcomes
D+30 to D+50
Partisan lean
D+29
Polls
No pollsmodel only

Haider is very likely to win: Haider wins in more than 99 of every 100 simulations.

Haider (D)
>99%
chance of winning
Scopa (R)
<1%
Average margin
D+35.3
80% of outcomes
D+23 to D+48
Partisan lean
D+29
Polls
No pollsmodel only

Range of outcomes

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

D+40.1R+60R+40R+20EvenD+20D+40D+60
D+35.3R+60R+40R+20EvenD+20D+40D+60

How the odds have moved

Chance of winning by forecast date.

0%25%50%75%100%AugSepOctNovNov 3Haider >99%Scopa <1%

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

0%25%50%75%100%AugSepOctNovNov 3Haider >99%Scopa <1%

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
Illinois state offices
+0.6Polls for governor, statewide and legislative races · details
Environment here
D+10.1Used 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 adjustmentD+34.8Fundamentals modelAdds incumbency, past results, money andexperienceD+40.0Polls in similar placesPolling of similar races in Illinois andlook-alike placesD+40.3Polling averageNo polls of this racenot availableHorizon forecastPolls + fundamentals, projected to Election DayD+40.2Pulse forecastPolls (and polling of similar places) only, todayD+35.4

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)0
Fundraising edge (log ratio of individual money)1.44
Elected-experience edge0
First-term incumbent0
Seat's last result vs. expectation30
Incumbent's last result vs. expectation0

Polls

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

The district

Lean D+29: how much more Democratic or Republican than the nation it votes for president.

Presidential vote

← RepublicanDemocratic →2016 presidentD+31.0D+28.8 vs. nation2020 presidentD+34.7D+30.2 vs. nation2024 presidentD+27.7D+29.2 vs. nation

Precinct results re-aggregated to the current district lines.

Who lives here

Population
100,756
People per km²
1,324
Adults with a B.A.+
52%
White, no degree
22%of adults
  • White 43%
  • Hispanic 20%
  • Black 13%
  • Asian 20%
  • Other / multiracial 4%

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

34,284 votes · Uncontested by the other party
✓ Stephanie A Kifowit (D)100.0%

2024 President Vote in this district

41,436 two-party votes · D+27.7 · D+29.2 vs. the nation
✓ Kamala Harris (D)63.8%
Donald Trump (R)36.2%

2022

29,232 votes · D+31.5
✓ Stephanie A Kifowit (D)65.7%
Joe West (R)34.3%

2020 Earlier district lines

37,152 votes · Uncontested by the other party
✓ Stephanie A Kifowit (D)100.0%

2020 President Vote in this district

46,210 two-party votes · D+34.7 · D+30.2 vs. the nation
✓ Joe Biden (D)67.4%
Donald Trump (R)32.6%

2016 President Vote in this district

37,622 two-party votes · D+31.0 · D+28.8 vs. the nation
✓ Hillary Clinton (D)65.5%
Donald Trump (R)34.5%