The GOP took over the OK legislature some years ago and the 2016 wave finally reached WVA.
It now has a GOP congressional delegation, the Governor’s office and one of two US Senate seats.
I can’t really speak for Kentucky but for WV I can do a little better. I travel there a lot for both business and pleasure. Both my biz associates and brother say that the WV GOP on the ground roots, city & county is still finding its way. The ground roots Rats still in many ways call the shots at the city & county level. This still existing support is what Manchin clings to. It’s changing but it hasn’t changed yet. The other problem is many of the new GOP local bulls are old Rat bulls with a shiny new GOP paint job. This causes some resentments. Well that’s what they tell. I will see for myself in 10 months when I retire there.