Appalachia-Democratic Primary

[VPH]

If you look at Virginia's primary, Bernie did best in the Appalachian areas. However, in Buchanan County, VA Bernie lost by nearly a 40 point margin while he won neighboring McDowell County WV by about 25 points. Is this indicative of the Trump effect of him having locked up the nomination by now, or is there some kind of cultural or socioeconomic difference that endeared Alleghany, Bath, and Buchanan County voters to Clinton over Sanders?

Also, why did Bernie not end up doing better in the area around Pittsburgh and in Ohio along the Ohio river? Aren't these areas exactly where he has been doing well looking at demographics?

[VPH]

Bernie once again did well in the region, getting 55% in Pike County, which borders Buchanan County, VA. Is it possible that if the super Tuesday states voted later, Bernie would have done better? Seems he's continued to improve in Appalachia.