VotePredictor
past elections

Arizona President

Joe Biden (D) vs Donald Trump (R)

Actual result
D+0.3
Final polls said
D+2.8
31 late polls · ✓
Model predicted
D+0.4
Winner
Dem

"Final polls said" averages polls from the last ~3 weeks — the call right before the vote, and how pollsters are rated. The model's prediction is walk-forward (trained only on earlier races).

Final rankings

How everyone who called this race did, ranked — VotePredictor shown inline (★).

Pollsters — each pollster's final poll vs the result

#PollsterFinal callMissCalled
1VotePredictorD+0.40.1
2Data OrbitalD+0.60.3
3Marist CollegeEVEN0.3
4Basswood ResearchR+0.10.4
5RMG ResearchD+1.00.7
6HighGround Inc.D+1.00.7
7Susquehanna Polling & Research Inc.R+0.40.7
8Targoz Market ResearchR+1.01.3
9ABC News/The Washington PostR+1.01.3
10Monmouth University Polling InstituteD+2.01.7
11Emerson CollegeD+2.11.8
12Morning ConsultD+2.32.0
13AtlasIntelR+2.32.6
14Change ResearchD+3.02.7
15IpsosD+3.02.7
16Data for ProgressD+3.02.7
17Noble Predictive InsightsD+3.02.7
18Y2 AnalyticsD+3.02.7
19YouGovD+3.02.7
20Latino DecisionsD+3.02.7
21Trafalgar GroupR+2.52.8
22Redfield & Wilton StrategiesD+4.03.7
23SSRSD+4.03.7
24Gravis MarketingD+4.03.7
25Suffolk UniversityD+4.03.7
26Strategies 360D+4.03.7
27OnMessage Inc.R+3.63.9
28Rasmussen ReportsR+4.04.3
29SwayableD+4.94.6
30Univision/Latino Decisions/North Star Opinion ResearchD+5.04.7
31KFFD+5.04.7
32The New York Times/Siena CollegeD+6.05.7
33SurveyMonkeyD+6.05.7
34The Justice Collaborative InstituteD+6.05.7
35Patinkin Research StrategiesD+7.06.7
36Garin-Hart-Yang Research GroupD+11.010.7

Forecasters — pre-election win probability, scored by Brier

#ForecasterWin probBrierCalled
1Race to the WHDem 82%0.032
2Princeton Election ConsortiumDem 80%0.040
3Cook PoliticalDem 75%0.062
4Elections DailyDem 75%0.062
5Sabato's Crystal BallDem 75%0.062
6The EconomistDem 73%0.073
7JHK ForecastsDem 73%0.073
8FiveThirtyEightDem 68%0.102
9CNalysisDem 60%0.160
10Inside ElectionsDem 60%0.160
11DDHQ/Decision DeskDem 58%0.176
12VotePredictorDem 54%0.209
13RealClearPoliticsDem 50%0.250

Polls (69)

PollsterDatenPollMiss
Change Research2020-10-31409D+3.03
Marist College2020-10-31717EVEN0
AtlasIntel2020-10-30641R+2.33
Ipsos2020-10-30610D+3.03
Emerson College2020-10-30732D+2.12
Data for Progress2020-10-291195D+3.03
Swayable2020-10-29360D+4.95
Data Orbital2020-10-29550D+0.60
Redfield & Wilton Strategies2020-10-28889D+4.04
The New York Times/Siena College2020-10-281252D+6.06
Rasmussen Reports2020-10-28800R+4.04
Trafalgar Group2020-10-271002R+2.53
SSRS2020-10-27865D+4.04
Gravis Marketing2020-10-27704D+4.04
Morning Consult2020-10-261059D+2.32
SurveyMonkey2020-10-264278D+6.06
Swayable2020-10-25304D+8.68
Noble Predictive Insights2020-10-24716D+3.03
Ipsos2020-10-24714EVEN0
The Justice Collaborative Institute2020-10-241007D+6.06
Patinkin Research Strategies2020-10-23729D+7.07
Susquehanna Polling & Research Inc.2020-10-21500R+0.41
Univision/Latino Decisions/North Star Opinion Research2020-10-21725D+5.05
Y2 Analytics2020-10-19700D+3.03
Change Research2020-10-18232D+6.06
Ipsos2020-10-18658D+4.04
Rasmussen Reports2020-10-18800D+2.02
Data Orbital2020-10-17550D+5.25
RMG Research2020-10-16800D+1.01
YouGov2020-10-151074D+3.03
Morning Consult2020-10-151066R+1.01
Redfield & Wilton Strategies2020-10-12750D+3.03
Ipsos2020-10-11667D+2.02
Monmouth University Polling Institute2020-10-11502D+2.02
Redfield & Wilton Strategies2020-10-09720D+2.02
Trafalgar Group2020-10-071087R+4.04
Noble Predictive Insights2020-10-06608D+4.04
Redfield & Wilton Strategies2020-10-06727D+6.06
SurveyMonkey2020-10-055945D+8.08
Data Orbital2020-10-04550D+4.54
Basswood Research2020-10-04800R+0.10
Ipsos2020-10-03633D+2.02
Change Research2020-10-03296D+6.06
The New York Times/Siena College2020-10-02655D+8.08
Latino Decisions2020-10-02600D+3.03
HighGround Inc.2020-10-02400D+1.01
Patinkin Research Strategies2020-10-02604D+4.04
Suffolk University2020-09-28500D+4.04
Susquehanna Polling & Research Inc.2020-09-27500D+1.01
Targoz Market Research2020-09-271045R+1.01
Strategies 3602020-09-26800D+4.04
Redfield & Wilton Strategies2020-09-25871D+3.03
Data for Progress2020-09-25808D+4.04
OnMessage Inc.2020-09-24138R+3.64
Data for Progress2020-09-19481R+1.01
Change Research2020-09-19262D+6.06
Garin-Hart-Yang Research Group2020-09-18400D+11.011
ABC News/The Washington Post2020-09-17579R+1.01
Data Orbital2020-09-16550D+2.72
Redfield & Wilton Strategies2020-09-14855D+5.05
Ipsos2020-09-13565D+1.01
Monmouth University Polling Institute2020-09-13420EVEN0
The New York Times/Siena College2020-09-12653D+9.09
Patinkin Research Strategies2020-09-12679D+3.03
Gravis Marketing2020-09-10684D+2.02
YouGov2020-09-101106D+3.03
Noble Predictive Insights2020-09-09600D+10.010
KFF2020-09-061298D+5.05
Change Research2020-09-05470D+4.04