My POD is this, around the time Nixon resigned he was suffering from a rather severe medical condition. So, what if that condition had indeed killed him. Either he doesn't survive and the senate trial makes his health worse, or he resigns and he dies shortly thereafter. (I like the first, but it seems to require two pod's and may not be workable.)
So, Nixon is dead around the time Ford would have given him his pardon.
Effects?
So, Nixon is dead around the time Ford would have given him his pardon.
Effects?