Congress shall have the power to coin money and regulate the value thereof.
No state shall make anything except gold and silver coin a tender in payment of debt.
No state shall coin gold and silver coin.
Conclusion:  Congress is required to coin gold and silver coin for the states to use as a tender in payment of debt. The fiat paper money system we now have is a violation of the Constitution and because it is no longer back by gold or silver there is no limit as to how much of it can be printed and no way of regulating the value of it.  Congress has, in violation of the Constitution, given the Federal Reserve Banks the power to print money and create money out of nothing but the need or desire for it.  The Federal Reserve is a private corporation wholly owned by private individuals. The majority of our so-called national debt is supposedly owed to the Federal Reserve.  If our government had done their duty under the Constitution to coin money and regulate the value thereof by controlling how much gold or silver they put in the coins, then there would  be no need to borrow play money , which has no value, from the Federal Reserve  and there would be no fictitious national debt. The citizens of each state have not required the states to abide by the Constitution and the states have therefore not required the federal government to abide by the Constitution.