>there can be no interstate market in a substance that is illegal to trade.

There is in fact an interstate market in many substances that are illegal to trade because laws against things do not make those things fail to exist.

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PaulDavisThe1st 2 days ago | parent [-]

No market that the federal government can recognize, tax or regulate

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lmm 2 days ago | parent | next [-]

Illegal commerce is still subject to taxation and regulation, famously so in the case of Al Capone.

	▲	IAmBroom a day ago \| parent [-]
		Legally subject to. Practically, untaxed.

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zdragnar a day ago | parent | prev [-]

By making it illegal, it has already been regulated. The IRS also requires reporting and taxing all income, even that which was unlawfully gained.