Final forecast archive · frozen November 3, 2026

The 2026 forecast, exactly as published.

These are the files the site served on Election Day, copied byte for byte and never edited since. The last one was written at 8:49 AM ET on November 3, 9 hours and 10 minutes before the first polls closed. Each file carries a SHA-256 fingerprint: change a single character and the fingerprint changes, so anyone can check that what is here is what we published.

The timestamp

Before the polls closed
Forecast updated
November 3, 2026
Last file written
November 3 at 8:49 AM ET
First polls closed
November 3 at 6:00 PM ET
Files frozen
14
Simulations per race
2,000

Fingerprint of the whole archive

aee837db06f45f1283efd11f98998423c628f9e78dc9b0bf7e693ab971877f85

The SHA-256 of the fingerprint list, one line per file in the order below.

Check it yourself

  1. Download any file in the table below.
  2. Fingerprint it: sha256sum model.json on Linux or shasum -a 256 model.json on a Mac. It matches the table.
  3. Open the file's history on GitHub. The commit from November 3 holds the same bytes, with the commit time on it, and the live copy on the forecast pages has not changed since.
  4. Look up the forecast pages on the Internet Archive, an outside copy of what the site showed before Election Day.

The final call

Democrats favored for the Senate, the House and most governorships

The Democratic chance of control on every update from October 4 to Election Day, as the forecast pages showed it.

Senate55 D · 1 I · 44 RThe winner picked in every race plus seats not up, with D 81% to win control. Count 55 D · 45 R, seat miss R 1, control called right.
House247 D · 188 RThe winner picked in every race plus seats not up, with D 91% to win control. Count 262 D · 173 R, seat miss D 15, control called right.
Governors29 D · 21 RThe winner picked in every race plus seats not up, with D 91% to win control. Count 30 D · 20 R, seat miss D 1, control called right.
Races in the archive506Senate, House and governor, plus every legislative chamber, statewide office and ballot measure in the files below

Chance of Democratic control, October 4 to November 3

50%60%70%80%90%100%Oct 4Oct 19Nov 3Senate 81%House 91%Governors 91%

Senate

Every Senate race, final forecast and result

AlabamaRightForecastR +12.6 · R 91%ResultR +9.4AlaskaNot scoredForecastD +5.1 · D 75%Result, countingR +0.9ArkansasRightForecastR +9.2 · R 85%ResultR +11.8ColoradoRightForecastD +22.3 · D 97%ResultD +25.0DelawareRightForecastD +28.3 · D 98%ResultD +27.1FloridaRightForecastR +3.7 · R 68%ResultR +2.9GeorgiaRightForecastD +12.8 · D 96%ResultD +18.0IdahoRightForecastR +18.7 · R 97%ResultR +23.3IllinoisRightForecastD +17.8 · D 95%ResultD +27.6IowaRightForecastD +3.7 · D 68%ResultD +4.2KansasRightForecastD +5.0 · D 72%ResultD +5.0KentuckyRightForecastR +10.6 · R 86%ResultR +12.1LouisianaRightForecastR +5.8 · R 74%ResultR +1.8MaineRightForecastD +5.7 · D 78%ResultD +8.1MassachusettsRightForecastD +33.5 · D 99%ResultD +32.1MichiganRightForecastD +8.8 · D 88%ResultD +6.6MinnesotaRightForecastD +10.9 · D 92%ResultD +10.2MississippiMissedForecastR +0.5 · R 53%Result, countingEvenMontanaRightForecastR +17.6 · R 97%ResultR +10.0NebraskaMissedForecastI +2.0 · I 59%ResultR +6.5New HampshireRightForecastD +12.6 · D 91%ResultD +9.4New JerseyRightForecastD +26.2 · D 98%ResultD +27.2New MexicoRightForecastD +21.5 · D 98%ResultD +26.3North CarolinaRightForecastD +11.1 · D 94%ResultD +19.6OhioRightForecastD +6.7 · D 84%ResultD +4.2OklahomaRightForecastR +18.4 · R 97%ResultR +18.1OregonRightForecastD +29.3 · D 99%ResultD +16.1Rhode IslandRightForecastD +40.2 · D 99%ResultD +37.2South CarolinaRightForecastD +1.1 · D 53%ResultD +4.5South DakotaRightForecastR +12.8 · R 90%ResultR +21.3TennesseeRightForecastR +18.9 · R 98%ResultR +12.2TexasRightForecastD +3.7 · D 70%ResultD +9.7VirginiaRightForecastD +20.8 · D 99%ResultD +22.2West VirginiaRightForecastR +27.7 · R 98%ResultR +20.4WyomingRightForecastR +38.4 · R 99%ResultR +30.5

Governors

Every governor race, final forecast and result

AlabamaRightForecastR +10.8 · R 96%ResultR +4.1AlaskaNot scoredForecastD +8.1 · D 95%Result, countingD +19.4ArizonaRightForecastD +9.5 · D 96%ResultD +14.6ArkansasRightForecastR +13.9 · R 98%ResultR +15.3CaliforniaRightForecastD +26.1 · D 100%ResultD +28.0ColoradoRightForecastD +20.2 · D 100%ResultD +27.6ConnecticutRightForecastD +19.0 · D 100%ResultD +16.7FloridaRightForecastR +1.6 · R 62%ResultR +1.3GeorgiaRightForecastD +3.9 · D 77%ResultD +8.6HawaiiRightForecastD +35.1 · D 100%ResultD +49.9IdahoRightForecastR +19.5 · R 100%ResultR +25.2IllinoisRightForecastD +24.9 · D 100%ResultD +27.5IowaRightForecastD +7.9 · D 93%ResultD +11.1KansasRightForecastD +3.8 · D 72%Result, countingD +0.5MaineRightForecastD +12.5 · D 98%ResultD +18.7MarylandRightForecastD +31.9 · D 100%ResultD +29.4MassachusettsRightForecastD +25.1 · D 100%ResultD +28.9MichiganRightForecastD +14.7 · D 99%ResultD +10.3MinnesotaRightForecastD +14.8 · D 99%ResultD +12.8NebraskaRightForecastR +3.6 · R 76%ResultR +8.2NevadaRightForecastD +6.1 · D 85%ResultD +7.2New HampshireRightForecastR +4.8 · R 78%Result, countingR +9.1New MexicoRightForecastD +11.6 · D 98%ResultD +14.5New YorkRightForecastD +16.0 · D 100%ResultD +19.8OhioRightForecastD +5.7 · D 86%ResultD +7.2OklahomaRightForecastR +5.8 · R 79%ResultR +6.1OregonRightForecastD +4.3 · D 77%ResultD +6.3PennsylvaniaRightForecastD +25.6 · D 100%ResultD +21.5Rhode IslandNot scoredForecastD +14.1 · D 99%ResultD +44.3South CarolinaRightForecastR +7.2 · R 85%ResultR +4.5South DakotaRightForecastR +14.7 · R 96%ResultR +27.0TennesseeRightForecastR +9.1 · R 93%ResultR +2.5TexasMissedForecastR +0.2 · R 52%ResultD +7.0VermontRightForecastR +5.1 · R 80%ResultR +6.6WisconsinRightForecastD +6.5 · D 85%ResultD +8.4WyomingRightForecastR +29.6 · R 100%ResultR +53.9

The files

Every file, with its fingerprint

Open reads the frozen copy. History opens the live file's commits, where the November 3 version carries the same fingerprint.

FileWhat it holdsSizeWrittenSHA-256Links
model.jsonSenate, House and governor races and chamber odds785 KBNov 3, 8:49 AM ETcc9fb4f5f08330a179caa7bf39dc09ebeb957c0061acc366537dc5056531d830Open · History
counties.jsonCounty forecasts for the statewide races447 KBNov 3, 8:14 AM ET8341604af4aadf185f5f32b200c64fde9b571f89bdf6f28390e63d418b2ed96cOpen · History
downballot.jsonStatewide offices below governor263 KBNov 3, 8:14 AM ET1b77a4047e5cda339ee75b0f64df35e2daa5a7e010cb35af42681acafaae3c9fOpen · History
downballot_counties.jsonCounty forecasts for the statewide offices629 KBNov 3, 8:14 AM ETc3fe4bf8680b62f8fdcee50747d74624e3857cc9cdfd04f39433721ce99ca254Open · History
measures.jsonStatewide ballot measures330 KBNov 3, 8:16 AM ETb660f7ae5610ed0d43969156dbad2c957350305f386b6d54a220f67f5d1a3817Open · History
measures_counties.jsonCounty forecasts for the ballot measures218 KBNov 3, 8:16 AM ETc33989743f6498da5f464ab3179b6c1e944287c9c77e3103be8f7ce0fd66d2d8Open · History
measures_hub.jsonBallot measure summary18 KBNov 3, 8:16 AM ETd09663736dfc4637ee2806e31c8af55510246ac36e1ada879bf771014b5d1a3cOpen · History
statehouse.jsonEvery state legislative district2.01 MBNov 3, 8:15 AM ET80becc53bb060aaaf6cf00e6c099cb260b26f2b5280b69ecc3051a6db94dfaa0Open · History
statehouse_hub.jsonEvery state legislative chamber188 KBNov 3, 8:15 AM ET3347320006ee9f1ab5b2102cbbca38bed9b5f2635d4f7fe9cab78074d5a4a5e1Open · History
polls_published.jsonThe polls in the final averages85 KBNov 3, 8:14 AM ET14fd268191df9effb25ec2c8023d2dfe3539eb0703902d5a1e1f134d7476fb2bOpen · History
earlyvote_adjust.jsonThe early vote adjustment applied on Election Day15 KBNov 3, 8:14 AM ET85cb4b2459972a9ff0cbf405b1a5c72418702dfe3f533dc7d5856cd7425c3842Open · History
other_races.jsonCourts, mayors and local races156 KBOct 19, 5:38 PM ETa9c84865bfff5aa3f5c5adbc0b03888f6f677a798333500e3577ed84506d867bOpen · History
sims_2026-11-03.jsonThe Election Day simulation run60 KBNov 3, 8:14 AM ETf02d454bc05c6d262a0eca670bafdc6cd63aab7152181311120b68a8c1ff329fOpen · History
sims_index.jsonChamber odds on every archived day since October 314 KBNov 3, 8:14 AM ET74012a7861a047515189b1adba17d27de1981f217b6843ff7f9edaee7ab46206Open · History

The courts, mayors and local file shows October 19 because those forecasts were final then and were not rebuilt on Election Day. The House, legislative and county results are graded in the accuracy report.