Not good.
Here we go again with your interminable hand-wringing. It's as predictable as the sun rising. It's the 2016 election all over again.
I don't know if you're aware of this, but Joe Manchin is a Democrat who has already won election to a U.S. Senate seat from West Virginia.
I presume you are aware of the fact, however, that Senatorial incumbents—not to mention all other varieties—nearly always win reelection. Indeed, that advantage is one of the best things about being an incumbent.
So it's "not good" that incumbent Senator Joe Manchin is leading his no-name GOP challenger? It's entirely predictable, and something to be expected. But don't let me ruin your depressing day... ;-)