>Thats strange, I hadn't actually attributed this reality to any particular administration.

That's strange, considering this administration is openly hostile to the environment, and ran on the traditional Republican platform of state's rights.

Voting rights, commerce, environment - these things being relegates to the states vs being reviewable by the federal government are related by how and whether the executive branch decides to act. That they have the legal power through case law doesn't mean they'll actually use it.