Manchin is a lock for re-election. He is one of the last "good ol' boy" moderate Dems along with Jon Tester. In a decade or so, the Dems will be filled with SJWs and lack any true relatable moderates or conservadems and states like WV will only elect Dems that are moderate or conservadems.
A Zogby poll is how you came to this conclusion? Even legit high quality polls in 2013 and mid 2014 showed Pryor and Landrieu with bigger leads than this poll shows for Manchin.
https://uselectionatlas.org/FORUM/index.php?topic=192295.0There was obviously a time when you probably thought of WV fondly, being one of the last solidly Democratic Southern states ... wouldn't you prefer it return to that instead of just being able to trash the state?
Anyway, I could honestly see anything happen with this race. I think Manchin will win a relatively close election, but I wouldn't be shocked if he got the Pryor treatment.