Looking at the NH preference polling conglomerate:
It strikes me that without Biden the results would be very different, with Warren and Buttigieg being likely beneficiaries.
Odd this year is that the Democrats keep stepping on their toes. But then again, I’ve always called the modern Democratic party the I’m-not-a-Republican party, that is, there isn’t so much a coherent set of beliefs but rather the party is a general collection of people who know they don’t like the modern (post-Nixon) Republicans.