Besides there are are 14,000 tariffs on the books now. It is just that the duty schedule is such they bring in <1%. All President Trump needs to do is raise the duties on existing tariffs which he could do without congress.
Please read the FairTax legislation.
The effective rate on imported goods will be the FairTax rate! There WILL BE NO CORPORATE INCOME TAX under the FairTax.
There is no need to have both a National Retail Sales Tax (nee FairTax) AND a tariff. Tariff combined with the FairTax will kill import market — surely you don’t want to do that!
I would propose that ALL tariffs be abolished in favor of the FairTax!