Well, there is, of course, the cheating to consider.
They intend to dump Biden and are looking for they best way to do it. He is a liability, and they want to nominate someone who can beat Trump.
Whoever they choose will be a figurehead. Biden's/Obama's puppet masters will continue to control the Federal Government--and the election process.
Remember when Caligula made his horse a senator? The Democrats are exactly the same. They would be happy with an animal in the Presidency if they could get away with it, and they would love to insult and belittle America and the American People and flaunt their power.
They HATE the USA.
However the time's not quite right yet. They're satisfied with fools like Biden and Obama and the rest of the Democrat politicians for the time being.