[Roscoe]

Ah, so dissenting opinions count as "authority"?

The Chief Justice of the United States Supreme Court isn't an authority?

Let's see what we can find ....

Please do. It would be novel to see you bring something to the table.

[MrLeRoy]

Here is a Supreme Court decision rejecting the extension of the Interstate Commerce Clause to "closely connected" intrastate commerce.

OLIVER IRON MIN. CO. v. LORD, 262 U.S. 172 (1923):

"The chief contention is that mining as conducted by the plaintiffs, if not actually a part of interstate commerce, is so closely connected therewith that [it falls under the authority granted by the Interstate Commerce Clause].

"The facts on which the contention rests are as follows: The demand or market within the state for iron ore covers only a negligible percentage of what is mined by the plaintiffs. Practically all of their output is mined to fill existing contracts with consumers outside the state and passes at once into the channels of interstate commerce. [...]

"Plainly the facts do not support the contention. Mining is not interstate commerce, but like manufacturing, is a local business, subject to local regulation and taxation. Its character in this regard is intrinsic, is not affected by the intended use or disposal of the product, is not controlled by contractual engagements, and persists even though the business be conducted in close connection with interstate commerce."