It's not just the blacks who are owned by the Rats in Alachua County, it's the entire county (I lived there several years while getting my degree from UF). The voter registration breakdown was something like 70 - 30 Rat when I was there - I'll bet it's even more lopsided now. That's pretty much all you can expect from a county where half the people live in a university town.
That's the truth. I've been trying to get involved with the Republican Party here, and I can't even find any representatives to talk to about their activities. The county REpub Party has a non-functional website, to boot.