Ossoff leads Collins by 4 in Quantus poll; our Georgia number eases to 84%

A Quantus Insights survey of 645 likely voters in Georgia, fielded September 14-16, has Democratic incumbent Jon Ossoff at 49.0 percent and Republican Mike Collins at 44.9 percent. That is a 4.1-point edge for Ossoff, with Ossoff just short of a majority.

Our model now gives Ossoff an 84 in 100 chance of winning the seat, down from 87 percent in our previous run earlier today. The mean projected margin moved from D+6.6 to D+6.0. Our 5th-to-95th percentile range is now R+3.7 to D+15.8, against R+3.2 to D+16.3 before. The direction of the change is small and the shape of the race is unchanged: Ossoff is favored, and outcomes on the Republican side of the line remain inside our range.

The Quantus number is slightly below where our average sits, which is why absorbing it cost Ossoff about three points of win probability rather than nothing. It did not alter the classification of the race. Our forecast has sat in the low-to-mid 80s for Ossoff through recent updates, and one poll of this size does not carry enough weight to move it further.

Georgia matters to the chamber math. Our model gives Democrats a 51 in 100 chance of winning Senate control and puts their mean seat count at 50.5, just under the 51 seats they need. Republicans need 50, because the payload's tiebreak rule holds that a 50-50 Senate goes to them with a Republican vice president. A race our model rates at 84 percent for one side is therefore not safe in the sense of being irrelevant to control: the 16 percent tail is a meaningful share of the paths that decide the chamber. Nationally, our generic-ballot average stands at D+7.3 across 28 polls in a 45-day window.