> It's a fair critique when he went from 4% to 19% in two weeks after spending 400 million on TV ads
It's a testament to the power of completely controlling messaging people have about you because you are buying so much airtime to send your message and most of the country is at best vaguely aware of you otherwise, but I suspect as post-debate polling rolls in we're going to see Bloomberg, as many others have before, is going to realize the sharp limitations that often runs into in campaigns (Trump's 2016 performance notwithstanding.)
> I mean we all know the DNC will choose whomever they want because of their superdelegates.
Superdelegates have no first-ballot voting rights[0], as a result of reforms pushed successfully by the Sanders faction after the 2016 election.
> but don't act like democrats aren't starting to view him as their best option
Sanders is the one with a wide and widening lead, so, no, your description isn't accurate (and despite claims that this is just because there are more centrist candidates, in the few primary head to head polls he clears an absolute majority head-to-head against each of the other major candidates.) Sanders is who the Democrats are increasingly seeing as their best choice.
[0] well, unless the outcome is certain because of a pledged-delegatr majority, in which case they can vote though it won't change the outcome.