Election Day, Nov 3 6 daysSenate D 85%House D 97%Governors D 86%Forecast updated Oct 28
2026 forecast ยท Arizona 5th

Mark Lamb is very likely to win Arizona's 5th District.

Elizabeth Lee vs Mark Lamb, an open seat. The model has Lamb ahead by 11.0 points, winning 95 percent of 2,000 simulated elections.

Likely RModel R +11.0Updated October 28, 2026
Elizabeth Lee
Democrat
43.4%
152,311 projected votes
Mark Lamb
Republican
54.4%
190,980 projected votes
95%Lamb
5%Lee
Lamb all but certainEach square is one simulated election night, Lamb wins about 95 of 100
RatingLikely R95% chance for Lamb
Model marginR +11.0No polls in the race
80 percent rangeR +2.1 to R +19.52,000 simulations
Projected votes351,116Lamb 54.4%

The district map

Every district in the state, shaded by its rating

Arizona districts

9 districts
Safe DLikely DLean DToss upLean RLikely RSafe R

Vote share

Each candidate's projected share and the range of 80 percent of simulations

Elizabeth LeeDemocrat ยท 5% to win
43.4%
Mark LambRepublican ยท 95% to win
54.4%

Scale runs from 25 to 75 percent. The dot is the forecast, the band is the 80 percent range and the brighter tick marks 50 percent.

Projected district vote

351,116 votes
CandidateVotesShare
Mark Lamb R190,98054.4%
Elizabeth Lee D152,31143.4%
Blake Bracht I7,8252.2%
Total351,116100%

Each candidate's expected vote in the On Point simulation, at the forecast's projected turnout.

The trend

Each side's chance of winning over the forecast's recent updates

0%25%50%75%100%5% Lee95% Lamb18 updates agoToday

Polling

Every poll in the average, and how the model reads it

The Arizona governor polling average
30%35%40%45%50%55%MayJunJulAugSepOct49.4Hobbs43.6Biggs
The line is the On Point average: a robust LOWESS fit through the polls, weighted by recency, sample, voter screen and pollster grade, refit three times so outliers count for lessDot size is each poll's weight todayHollow dot: a lean firm's poll as published; the filled dot is where the average counts it, after its measured lean is taken offHover or use the arrow keys to read any day
What moves the average today
Steve Cortes for League of American Workers (R)Oct 6 ยท 1,513 LV ยท NR17%Hobbs +5.7
GrayHouse for Norton (R)Oct 8 ยท 550 LV ยท NR17%Hobbs +6.0
GQR for Hobbs (D)Oct 4 ยท 600 LV ยท NR ยท D lean, counted Hobbs +2.6 in the average16%Hobbs +4.0
GrayHouse for Norton (R)Oct 20 ยท 550 LV ยท NR16%Hobbs +6.0
RedBox Research (D)Oct 23 ยท 2,686 LV ยท NR15%Hobbs +5.1
Quantus InsightsAug 17 ยท 780 LV ยท Gold6.2%Hobbs +6.0
Every other poll together: 13%

This is the same On Point polling average as the full average page. The forecast reads the polls through its own Election Day projection, shown as the On Point average in the table below, and blends it with partisan lean and fundamentals.

Polls of the race

Full average
PollsterSampleAgeMargin
On Point averageWeighted averageNo polls

Each margin is the poll as the pollster published it. The forecast counts every poll after its house effect and the undecided split, which is what the trail above shows; hover a margin for the counted value. Lean R and Lean D mark partisan leaning firms.

Model margin
Lamb +11.0
Chance of winning
Elizabeth Lee5%
Mark Lamb95%
Simulated vote
Elizabeth Lee43.4%
Mark Lamb54.4%
Blake Bracht2.2%
How the model gets there
Partisan leanD +20.0
FundamentalsR +10.6
With pollsR +11.0

How we got here

From the state's partisan lean to the forecast, one stage at a time

D +24R +24Partisan leanthe state's baselineD +20.0Fundamentalsapproval, economy, candidatesR +10.6With pollsno pollsR +11.0
On Point on YouTubeThe Arizona House race, explained on YouTubeForecast breakdowns, the polls and election night coverage on the On Point channel.Subscribe
Methodology
Every county is rebuilt by simulating voters going to the polls, 2,000 times, from On Point Polling survey data, past results, and the polling average. How the model works.