ASU's response should be,
"We don't wish to pay him tens of millions of dollars for defamation. And we suggest you issue an apology to him immediately, lest you end up paying him every penny you make for the rest of your lives."
No such thing as a "national park".
FedGov has no legit power to cut land out of a State for the sake of a "park" or "forest".
There are forts, ports, courts, postal roads, territories and land reserved for Indians.
They can place a park on land used for those above reasons, but the park...