How do you think Christie performs against Clinton in coal country in 2016? I don't see Christie as a big supporter of coal since he's one of those rare Republicans who believe in climate change. If Clintons plays this right she could make the whole region competitive, I see Christie under performing big here against her.
Being a national Democrat( as of now) seems poisonous in Appalachia. Ex. Just look at how "pro-coal" "Clinton" Democrats performed in this region in 2010, 2012, and the 2013 VA governor's Race. Ex. in 2013 Terry McAffule was butchered in the VA parts of the area while a pro-coal Democrat with White working class appeal(Ralph Northam)-the Lt. Gov. candidate didn't perform much better against the certifiability batsh**t E.W. Jackson.
So I am very skeptical that Hillary will do any better then Obama did in Appalachia in 2016(Even against Christie).