Lean D.
Gillum is more likely to win than Abrams.
Can the Florida Senate flip to Democrats as well?
Unlikely but possible. Dems would need to basically have a perfect election for that to happen. They need 5 seats. There are about 7 on the seats in play but 5 of those are lean to likely R at this point. They'll be lucky to pick up 3 seats. I'll gladly eat crow if they win a majority though.
Its very likely for the senate to go 19-21, or 20-20 methinks. Three tossup seats and 4 Lean/Likely R seats. Such a scenario means that every special election from then onwards becomes a battle for chamber control.