I don’t remember reading that in the Constitution.
You have no right to Free trade with foreign nations. You have unassailable rights to free trade with other US States and territories of the United States.
Section. 8.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
To borrow Money on the credit of the United States
To regulate Commerce with foreign Nations, and among the several States, and with the Indian Tribes
To establish an uniform Rule of Naturalization, and uniform Laws on the subject of Bankruptcies throughout the United States
To coin Money, regulate the Value thereof, and of foreign Coin, and fix the Standard of Weights and Measures