Regarding the EPA, please note the following. Not only have the states never delegated to the feds, expressly via the Constitution, the specific power to regulate intrastate environmental issues, but consider this. The Founding States had made the first numbered clauses in the Constitution, Sections 1-3 of Article I, to clarify that all federal legislative powers are vested in the elected members of Congress, not in the executive or judicial branches, or in the non-elected bureaucrats running the constitutionally undefined EPA.
So even if the states had delegated to the feds the power to regulate intrastate environmental issues, Congress cannot delegate such powers to third parties. And by doing so, corrupt Congress is wrongly protecting federal legislative / regulatory powers from the wrath of the voters in blatant defiance of Sections 1-3 referenced above.
Bingo!