Follow the story.
The story specifically mentions that Bush the first was in a windfall position but whether or not he sold or held is unknown. The implication is that McAuliffe cashed out for the big bucks. There is nothing wrong with that on the surface. The question is whether or not there was insider trading involved. The same question will apply to Bush if he took the windfall.
Additionally there is the question of buying access and subsequent favors in the form of donations.
It is just another huge bankruptcy that has political overtones