The democratic party should do a precommitted vote behind closed doors to prevent any partisan wellup and then for whoever wins Biden should do an immediate endorsement. This would make the democratic party look competent and the event and new candidate will dominate the news cycle putting Biden's age into the dustbin of history. Rhetorically he is not stepping down. He is passing the torch of democracy to a new vibrant leader. It really is this simple. Any complications are caused by the democratic elites themselves. Country over personal ambitions.