2016 Florida early voting trends won’t tell us much about 2020. That’s because who votes by mail/early in-person has totally flipped. In 2016 Florida Democrats cast 154,694 more ballots at early voting locations than Republicans, and the GOP cast 58,244 more mail votes than Democrats. This year, way more Democrats than Republicans are voting by mail and, so far in a few days since early in-person voting, more Republicans are voting in-person than Dems.
So, it is foolish to characterize this as anybody’s advantage at this point. We just don’t know at this point.
Also, there are nearly 1M non-party early votes in Fla so far and nobody knows how they are trending. That’s a lot of votes and we know that national polling has Trump doing poorly with Independents. Maybe Fla will be different and maybe it won’t. Independents may well decide Florida victor.
Finally, as to R allegedly being “nearly even” in Dade County, it’s 59.4 Dem and 40.6 R. That’s Trumping math I guess.