Question for more experienced members (than me) on here:
Any reason to believe that if GA goes Dem, then so will NC and FL? Or, alternatively, GA only goes Dem if FL and NC do?
Most likely if GA flips, FL and NC already have. But it's not entirely impossible that GA flips but at least one of the others doesn't. Stranger things have happened. Florida is notorious for coming down to the wire seemingly no matter what, so I can imagine a world in which Trump wins Florida by like .0002% but loses GA and NC because they have more normal trends. It's not all that likely, but it's not out of the realm of possibility.
I agree - North Carolina and Georgia have similar demographics, with the key difference being that NC's rural areas tend to vote more Dem than GA's, and their suburban areas vice versa. It appears that national trends are taking a firmer hold over both states, though, as the House PV was 50-48 R in NC in 2018 (with one R seat uncontested) and GA was 52-48 (with one seat of each party uncontested). Easy to see them voting within a point of each other in 2020.