The results from WV and KY on the Democratic side make no sense if you look at the neighboring states. Tennessee's border with Kentucky is solidly Clinton country, and especially in the counties bordering Kentucky's western panhandle are strong Clinton counties. Yet it now appears as tho Sanders will win strongly in some counties where across the state lines Clinton took 60, sometimes 70 percent. Is it that her comments about coal made them rebel against her, or is it just that these states' Democratic electorates are so different from their neighbor's ones. I don't really believe in the idea that her coal comments alienated so many people; especially for Democratic voters, I feel that most of the outrage is an overreaction. However I can see it playing into an image of Clinton as someone who just can't relate to these kinds of voters. Yet again, I'm reminded that she won rural eastern Ohio, western PA, and western VA, as well as Appalachian TN. Still doesn't make much sense.
Tennessee was an open primary so those pro-trump democrats were able to expel their anger on the GOP ballot instead of the Dem ballot by voting for Bernie as a protest vote. One thing that probably helped Hillary is that the kentucky GOP primary was a long time ago in political time which meant just enough pro-trump democrats did not show up to help Bernie. Meanwhile WV had a primary where it was the same date for both parties which helped Sanders when those pro-trump democrats found out they couldn't take a GOP ballot.