Florida’s special U.S. Senate contest between Republican incumbent Ashley Moody and Democrat Angie Nixon features a Republican registration advantage of roughly 1.5 million voters and consistent polling leads for Moody of 5–10 points in late September and early October surveys. This environment, combined with typical midterm dynamics following the high-turnout 2024 cycle, anchors trader expectations for total ballots in the 7.5–9 million range. Key variables include independent and no-party-affiliation mobilization, early and mail voting intensity, and relative enthusiasm gaps between the parties’ bases in a race without a presidential contest on the ballot. The spread across multiple turnout bands reflects uncertainty over how much the current polling margin and registration edge will translate into differential participation before November 3.