This would be important if Joe read the paper, or the people very close to him cared what anyone else thought. If we see things get especially nasty in regards to Hunter, or if we see some corruption investigation being mentioned on “the big guy”, we’ll know he said no to dropping out, and they’ve had to make him an offer he can’t refuse.
Release of the Hur tape to the NYT or Washington Post might meet your criteria.
That would be classic Deep State backstabbing.