Well, it is obvious that we no longer live under the constitution anyway. We have an individual who is ineligible occupying the office of president. He says that he was born a British subject, and as a child he was an Indonesian citizen according to his school records. Presidents now routinely legislate by executive order, a power reserved for Congress. Executive orders are laws, and the constitution does not empower the executive branch with legislative powers. We have a congress that routinely votes on legislation without even the opportunity to read it. We have Supreme Court “justices” appointed by a usurper, who vote on whether or not to hear cases regarding the validity of their own appointments. We have the federal government mandating purchase of health insurance from private corporations, certainly not an enumerated power. We have the usurper, on a whim, exempting certain large corporations from the health insurance. We have the federal government taking ownership of manufacturing. The power to issue currency has been delegated to a private corporation, the Federal Reserve. We wage wars without congressional declaration. We, and our children, as travelers, are degraded, humiliated, sexually assaulted, and subjected to extremely dangerous ionizing radiation without probable cause and without a warrant at airports and this is spreading to other means of transportation. We have a federal government that collaborates with foreign governments to sue Arizona for checking legal status of suspects. We have fraudulent electronic voting machines (this has affected both Democrat and Republican candidates), we have ACORN, federally funded, caught in massive voter fraud and other criminal activities. We have hero LTC Lakin facing the likelihood of prison time for following his oath. I could go on with this but it would take many pages. You get the idea. So, why suddenly such concern for the constitution regarding state tariffs? Personally, if the constitution prohibits state tariffs, I am opposed, but equally opposed to all other  violations.

comment from Orly:

I agree with all the points and would add, that the states delegated their rights to charge tariffs by relying on the Federal government in assessing universal tariffs and using the revenues of taxation on imports to support the Federal government. When the Federal government decided to dismantle the tariffs, it breached the agreement it had with the states, as suddenly there is an enormous debt of 14 trillion dollars to pay for the shortfall of the operating the federal government, it will have to come from somewhere. Suddenly the states are negatively affected, as the cheap imports destroyed the work force across the board and the states lost their taxation revenues. The detrimental effects are far reaching. As with any breach of contract, the aggrieved party has multiple remedies. Declaration of sovereignty and secession is only but one of such remedies.