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

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Oklahoma › U.S. House of Representatives · November 3, 2026 · Updated Oct 16, 2026

Oklahoma's 5th District

Bice is very likely to win: Bice wins in 49 of every 50 simulations.

Nelson (D)
3%
chance of winning
Bice (R)
97%
Average margin
R+11.6
80% of outcomes
R+19 to R+4
Partisan lean
R+20
Polls
1in our database

Bice is very likely to win: Bice wins in 19 of every 20 simulations.

Nelson (D)
5%
chance of winning
Bice (R)
95%
Average margin
R+11.9
80% of outcomes
R+21 to R+3
Partisan lean
R+20
Polls
1in our database

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+11.9R+30R+20R+10EvenD+10D+20D+30

How the odds have moved

Chance of winning by forecast date.

0%25%50%75%100%AugSepOctNovNov 3Nelson 3%Bice 97%

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

0%25%50%75%100%AugSepOctNovNov 3Nelson 5%Bice 95%

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

The candidates

Democratic

Jena Nelson

Oklahoma Teacher of the Year (2020) and nominee for Oklahoma Superintendent of Public Instruction in 2022

Experience
No elected office
Raised
$739K
From individuals
$716.8K
Spent
$655.4K
Cash on hand
$83.6K

Money: FEC, through Sep 30, 2026.

Profile and career

RepublicanIncumbent

Stephanie Bice

Incumbent U.S. representative

Experience
Statewide office or Congress
Raised
$2.4M
From individuals
$612.7K
Spent
$1.8M
Cash on hand
$1.7M

Money: FEC, through Sep 30, 2026.

Profile and career · Wikipedia

What goes into the forecast

Every ingredient's estimate of the final margin.

National environment
D+9.5Election Day forecast; federal races run in it
Swing reaching this office
78%Of a shift in the environment, from past House races since 2016
Upper South adjustment
+0.5How House races in the region have run against lean and environment lately
← RepublicanDemocratic →Lean + environmentUsual vote, shifted by 78% of the environment andthe Upper South adjustmentR+10.1Fundamentals modelAdds incumbency, past results, money andexperienceR+11.7Polls in similar placesPolling of similar races in Oklahoma andlook-alike placesR+12.1Polling average1 poll, latest Sep 20R+11.4Horizon forecastPolls + fundamentals, projected to Election DayR+11.6Pulse forecastPolls (and polling of similar places) only, todayR+11.9

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)-1.1
Elected-experience edge-1
First-term incumbent0
Seat's last result vs. expectation0.81
Incumbent's last result vs. expectation0.81

Polls

R+10R+5EvenD+5D+10Avg. R+11.4Sep 20Nov 3
All 1 polls
PollsterDatesSampleNelsonBiceMarginAdjusted
GBAO for Nelson's campaignD-sponsoredSep 17–Sep 20500 LV4348R+5R+11.4

Adjusted: after correcting for the pollster's house effect, registered vs. likely voters, and movement in the national environment since the poll; shown for the polls carrying the most weight in today's average. Larger dots in the chart carry the most weight. Last poll: Sep 20, 2026.

The district

Lean R+20: how much more Democratic or Republican than the nation it votes for president.

Presidential vote

← RepublicanDemocratic →2016 presidentR+26.4R+28.6 vs. nation2020 presidentR+18.8R+23.4 vs. nation2024 presidentR+46.5R+45.0 vs. nation

Precinct results re-aggregated to the current district lines.

Who lives here

Population
822,432
People per km²
89
Adults with a B.A.+
38%
White, no degree
40%of adults
  • White 63%
  • Hispanic 11%
  • Black 11%
  • Asian 3%
  • Other / multiracial 12%

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

342,107 votes · R+21.4
✓ Stephanie I. Bice (R)60.7%
Madison Horn (D)39.3%

2024 President Vote in this district

113,188 two-party votes · R+46.5 · R+45.0 vs. the nation
✓ Donald Trump (R)73.3%
Kamala Harris (D)26.7%

2022

258,826 votes · R+22.4
✓ Stephanie I Bice (R)59.0%
Joshua Harris-Till (D)37.4%
David K Frosch (I)3.6%

2020 Earlier district lines

303,849 votes · R+4.1
✓ Stephanie Bice (R)52.1%
Kendra S Horn (D)47.9%

2020 President Vote in this district

318,567 two-party votes · R+18.8 · R+23.4 vs. the nation
✓ Donald Trump (R)59.4%
Joe Biden (D)40.6%

2018 Earlier district lines

238,960 votes · D+1.4
✓ Kendra Horn (D)50.7%
Steve Russell (R)49.3%

2016 Earlier district lines

280,570 votes · R+21.6
✓ Steve Russell (R)57.1%
Al McAffrey (D)36.8%
Zachary Knight (L)6.1%

2016 President Vote in this district

279,655 two-party votes · R+26.4 · R+28.6 vs. the nation
✓ Donald Trump (R)63.2%
Hillary Clinton (D)36.8%