+1 In my experience, younger Trump voters in the SE tend to be more politically and economically ignorant.*

Big claim, but as a consequence you're seeing his support tail off substantially in younger voters as the rubber (his campaign claims) meets the road (actual governing, policy, and results). https://www.chip50.org/blog/whose-approval-disapproval-of-tr...

His rhetoric on the campaign trail was attractive to people who didn't think past first order effects ('Yeah! Fewer migrants! They took our jobs!'), but the net effects are becoming evident to those same people, even if they don't understand why.

* I'm explicitly differentiating "Trump voters" from Republicans-who-voted-for-Trump (aka the temporarily endangered mainstream Republicans)