Florida Governor: Donalds Holds, Likely-Voter Models Widen the Gap

Three new surveys of the Florida governor race, all completed October 4, point in the same direction and offer a useful case study in how screen methodology shapes the published margin. Republican Byron Donalds leads Democrat David Jolly in all three. The more interesting finding is not that Donalds is ahead, but by how much the lead changes depending on which voters the pollster decides will actually show up.

Targoz Market Research ran both a registered-voter and a likely-voter model from the same underlying sample. Among registered voters, Donalds' edge was 48%-39%, a nine-point gap. Switch to Targoz's likely-voter screen and the race opens to 52%-42%, a ten-point margin that also happens to match the topline from the James Madison Institute's own October 4 poll. That convergence matters: two different pollsters, using two different likely-voter methodologies, landed on nearly identical results once they applied a turnout screen. The registered-voter number is the outlier here, not the likely-voter figures.

The consistent widening under a likely-voter screen is the more significant signal than any single topline. It suggests Donalds' coalition is concentrated among voters pollsters already consider reliable, while Jolly's support includes a larger share of registered voters who may or may not turn out. Whether that gap closes by November depends on turnout operations neither poll can measure directly. For now, the pattern across all three screens is uniform enough that PollingSource rates the race Lean R, reflecting a real but not insurmountable advantage.

Florida's concurrent Senate contest shows a similar shape but a different scale. The James Madison Institute's October 4 poll had Republican Ashley Moody leading Democrat Angie Nixon 52%-42%, a ten-point margin that lines up with PollingSource's Likely R rating in that race. Moody's lead is both larger in share and more stable across the data available than Donalds' registered-voter number, underscoring that Florida Republicans are not uniformly positioned up and down the ballot — the governor's race remains the more competitive of the two statewide contests even as both point the same direction.

Worth watching: whether Jolly's campaign can convert registered-voter support into the likely-voter column before Election Day, or whether the gap that opened up this week becomes the floor rather than the ceiling for Donalds.