Thank you! Any time this kind of polling shows up on Lemmy, users seem to think this is the Plan of the Democratic Leadership Cabal, rather than an incredibly premature name recognition test.
People want to vote for people they have favorable impressions of who they also think others will vote for. Without other frontrunners, who emerge over time, it's not surprising that polled Democrats would recognize and still support the candidate that 75 million people voted for five months ago.
If you want other candidates (I do), identify them and figure out how to help them build their profile now.
The poll seems to cover Democrats and "Democrat-leaning independents," so not the DNC.
Exit: can't find the actual post on Morning Consult yet, but the article features an image where they specify the polled population.