Trump won FL, which was Clinton's only because of Marco Rubio. Clinton and Patrick Murphy would have won the state without Rubio on the ballot. Nelson will bring home the Dems even with Putnam, with the Governor seat at stake. And it is a tossup.
Clinton lost Florida because Trump ran the table in places like Polk County and the panhandle.
Yeah, she did well in D strongholds, actually even a little better than Obama, but unlike Obama, she was unable to wrestle down the R's leads in their strongholds to manageable sizes, and the R racked up leads that were out of control (well, except in Duval county, but that was not enough) for the big cities to be able to overpower them.