The constitution precludes it.
That’s correct, he can not unilaterally cancel the election, but with Congress’s approval they may be able to temporarily postpone it. After all, many RINO’s like their Democrat counterparts believe the Constitution is a living document that can be augmented to satisfy certain situations.
Too late to pull a switch. The ballots are all printed, just about everywhere.
Besides, all those millions who have ALREADY marked an early ballot for Herself, they are pretty largely locked into their decisions.
No do-overs.