Updated September 29, 2026 · model inputs through September 27, 2026

Georgia Senate Forecast

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Senator Jon Ossoff is defending the seat he won in Georgia’s 2021 runoff against Representative Mike Collins. Georgia’s recent Senate contests have been decided in a political climate where Atlanta’s growth and the state’s rural strength pull in opposite directions.

Forecast summary

Model margin
D+7.98
Rating
Likely D
Polling average
D+8.57
Fundamentals
D+6.74
Matchup
Jon Ossoff vs. Mike Collins

FORECAST HISTORY

Model margin over time

Forecast history will appear after the first recorded model release.

No candidate win probabilities have been published from a frozen, label-verified simulation run yet.

MODEL BREAKDOWN

How the forecast is built

The polling average and fundamentals are blended at their published weights.

Polling average — — · —
Fundamentals — — · —
Projected margin — Published model output
Polling Fundamentals

Margins are D-minus-R points. Candidate strength is included in fundamentals; its separate score is not published. Values are rounded to two decimals.

POLLING INPUTS

Polls behind the average

Polling average
D+8.57

Field dates Pollster Sample Results
Fielded Sep 22–Sep 23, 2026InsiderAdvantage1,200 LVD Jon Ossoff 50% · R Mike Collins 42% · O Undecided 8%
Fielded Sep 15–Sep 18, 2026YouGov3,447 RVD Jon Ossoff 51% · R Mike Collins 41% · O Other / undecided / no vote 8%
Fielded Sep 15, 2026Rasmussen ReportsNot reported LVD Jon Ossoff 51% · R Mike Collins 42%
Fielded Sep 13, 2026Trafalgar Group*Not reported LVD Jon Ossoff 49% · R Mike Collins 43%
Fielded Aug 16–Aug 17, 2026Insider Advantage800 LVD Jon Ossoff 50.1% · R Mike Collins 42.6%
Fielded Jul 23, 2026AARP1,060 LVD Jon Ossoff 52% · R Mike Collins 43%
Fielded Jul 8, 2026Wick1,175 LVD Jon Ossoff 47% · R Mike Collins 43%
Fielded Jul 1, 2026Fox News1,002 RVD Jon Ossoff 56% · R Mike Collins 43%
Fielded Apr 21, 2026Echelon407 LVD Jon Ossoff 51% · R Mike Collins 44%
Fielded Mar 5, 2026Emerson College1,000 LVD Jon Ossoff 48% · R Mike Collins 43%

The published average comes directly from the workbook. Polls are not equally weighted, and the browser does not recompute the forecast.

The published average comes directly from the workbook. Polls are not equally weighted, and the browser does not recompute the forecast.