Biden has not paid states to be on the ballot and it is too late I think legally.
Sanders should have a cow.
Could the convention delegates “install” him? I’m not familiar with the laws and procedures.
No reason he could not be drafted in the convention.
If Hitlery is facing criminal and felonious charges, I imagine there is some way for the committed delegates to be released and Biden becomes the consensus candidate.
Bernie would be left sucking hind tit, assuming he does not win outright.