This was actually an interesting thread despite some weird tangents including some by trolls.
Here's an addition I can't believe wasn't mentioned: Anything about "Reagan Democrats". Words can not describe how much of a stupid f**king term this is. And perhaps the only thing more idiotic than it is some of the areas that it's used to describe. Anyone who says this basically should be considered of having no credibility whatsoever, period.
Unless you mean Reagan supporters who are now Democrats, but yeah, that's not what they mean.