Basically a state that mostly votes for a certain party but is bound to flip over the next decade.
For democrats I see Maine, Minnesota and New Hampshire as borrowed time states. Maine and New Hampshire are top 5 whitest states and Minnesota is whiter than both Ohio and Missouri. If Ohio is Misouri 2.0 then Minnesota is Ohio 2.0 (Wisconsin as well but they have voted R so many times we can't call it on borrowed time). Maine and NH could be WV 2.0 if locall whites start line up with the national trends, even Vermont could go from safe D to safe R in a snap.
For Republicans I only see Georgia. Texan minorities are more conservative and Romneycrats are a not enough to flip it. Florida is trending Republican with the retiree influx and North Carolina is the new Florida, the state democrats have the illusion they'll flip but never do.
There isn't like a permanent supply of rich(or at least rustbelters who think they are because they have a dozen guns and a half a million dollars) hexagenarians and septigenarians to keep the sunbelt Republican forever. There aren't enough Gen Xers that can afford to retire the way boomers did (there aren't as many Xers for that matter) and Millennials aren't going to be as rich or conservative even 30 or 40 years from now. There's no reasonable scenario that only Georgia flips and the major states around it don't.
Texas I can see being saved by the fact that the minorities there may be more "aspirational" than minorities in other areas. If you consider Cubans white, Florida's demographics and voting habits start to make sense when you also account for the poor discipline of the state Democratic party.
