I would probably assume Biden ran and won in 2016 and this was his reelection bid.
This plus, when did Trump move to Florida?
Well, he has spent part of the year at Mar-A-Lago for decades and Florida residency would obviously be more conducive to his political ambitions as a Republican than NYC. If I saw this after the 2010 election, I would assume Trump moved to Florida and won the governorship or the senate seat in 2018, then ran against incumbent Biden. This would also go a long way to explaining R Florida vs. D GA/AZ from a 2010 perspective!
