That's a really good point, when Biden first joined the race, I thought he was gonna dominate the primaries easily. Mainly due to the fact he's heavily tied to Barack Obama, who is highly received among the democratic party, as well as the fact he could easily garner the older and more moderate voters (read: the ones who vote) by standing to the right of the other lefty dumbfucks that had been holding rallies. In addition, with all the connections he undoubtedly has from being VP, I expected a strong campaign (in comparison to the others) that would end with Biden easily clinching the nomination, alongside another Sander's faction meltdown at the DNC.
With exception to the Sanders meltdown, all of those expectations have been vaporized. Biden's health is clearly declining to worrisome levels, yet, even with this Ukraine shit, his poll numbers are indicating he's still ahead in a good number of states. I can't imagine anything more demoralizing to the democratic party than their nominee stumbling and slurring through his DNC speech. The debates would only go worse for him, Trump has reached the position where he doesn't have to play by the rules and will no doubt capitalize on Biden's gaffes on live television. After which, the democratic party would be nothing but dead men walking towards election day.
I also just want to add one thought. This may be the head cold making me think crazy shit, but I've been pondering whether Bloomberg is joining the race deliberately to sabotage Biden's campaign to ensure the democratic nominee at least isn't dying on screen, or if he just simply thinks he can win. Probably the latter.