Why would anyone vote for Don Blankenship? This doesn't seem realistic
Regardless of WV's current political climate, it is a closed primary state, making this especially surprising. WV's GOP primary electorate is FAR from the same group that voted for Trump in 2016, and they have traditionally supported more establishment-minded candidates.
I actually think that Don Blankenship would be doing worse in an open primary. Many Jenkins and Morrisey supporters are the type of people who voted Democrat throughout most of the 20th century, and never changed their party registration.