Biden ending his campaign is one thing; Biden *resigning* would mean:
a) endless GOP House "investigations" on Kamala Harris "covering up" Biden's mental state;
b) the GOP House and broken Senate both have to confirm the new VP, they won't, and GOP will blame Dems.
It's simply not a viable plan.
Who on earth (aside from the GOP base) would blame Dems for congress not confirming a VP replacement, particularly a moderate one or former Republican?
In this media environment? They’d scream how the nominee is unqualified, the Times would find some random Democrat to say “I think Harris knew it’d be hard to get anyone confirmed” and run a headline of “Congress says candidate unqualified, Harris knew they wouldn’t be confirmed”