Question is:
Does it even matter any longer?
Fossils? They want fascism.
Car makers and their shareholders? They all want to cripple the UAW.
Wall Street? They want more tax cuts instead of paying their fair share and no regulation whatsoever.
So who would pay for a campaign?
They might get voters without Biden and a clear stance on civil rights, taxes, green deal and so on, but are there even any folks in there who would and could do that? I for one don't see any.