The 10th amendment does not grant sovereignty. It reads: "The powers not delegated to the United States by the Constitution, nor prohibited by it to the States

The 10th amendment does not grant sovereignty. It reads: "The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people." Two of the powers granted to the United States are the power to print money and the power to raise an army. There are plenty of other powers that states lose to Congress, but you can't be sovereign without those two atleast.