[Jim W N]

There is NOTHING in the Constitution that compels tariffs.

[central_va]

I guess this is nothing:

To regulate Commerce with foreign Nations, and among the several States, and with the Indian Tribes;

Regulate commerce means the power to collect duties on imports.

[central_va]

And then there is this:

The Congress shall have Power To lay and collect Taxes, Duties, Imposts and Excises, to pay the Debts and provide for the common Defence and general Welfare of the United States; but all Duties, Imposts and Excises shall be uniform throughout the United States;