Midterm Forecast2026 · Senate & House
20,000 simulated elections · Model run Oct 28, 12:50 AM ETPolls through Oct 27 · Election Nov 3
House / AZ-4Arizona's 4th district 2026 · held by Democrats

Democrat is heavily favored in AZ-4

Democrat>99%Democrat · incumbent
Republican<1%Republican
Median marginD+20.080%: D+12.0 to D+28.0
Cook PVID+42026 lines
Tipping point0.1%decides the majority
District pollsNonefundamentals only

Range of outcomes

How the forecast is built

Lean: twice the PVI plus the generic ballot (D+8.7). Incumbency adds 3.0 points.

Chance of winning over time

Daily reruns of the model

Each day is a fresh run of today's model using only the polls that had finished by the day before. Daily runs since Jul 1.

What the forecasters say

Ten published ratings; Cook updated through Oct 27
CookSolid D
Inside ElectionsSolid D
SabatoSolid D
Race to the WHSolid D
EconomistSolid D
Split TicketSolid D
DDHQLikely D
FiftyPlusOneSolid D
Fox NewsSolid D
Silver BulletinSolid D

What this seat means for control

District polls

PollsterField endSampleResult
No public district polls found.