The legislatures under the dominance of these men had enacted paper money laws enabling debtors to discharge their obligations more easily. The convention put an end to such practices by providing that no state should emit bills of credit or make anything but gold or silver legal tender in the payment of debts. The state legislatures had enacted laws allowing men to pay their debts by turning over to creditors land or personal property; they had repealed the charter of an endowed college and taken the management from the hands of the lawful trustees; and they had otherwise interfered with the enforcement of private agreements. The convention, taking notice of such matters, inserted a clause forbidding states "to impair the obligation of contracts." The more venturous of the radicals had in Massachusetts raised the standard of revolt against the authorities of the state. The convention answered by a brief sentence to the effect that the President of the United States, to be equipped with a regular army, would send troops to suppress domestic insurrections whenever called upon by the legislature or, if it was not in session, by the governor of the state. To make sure that the restrictions on the states would not be dead letters, the federal Constitution, laws, and treaties were made the supreme law of the land, to be enforced whenever necessary by a national judiciary and executive against violations on the part of any state authorities. =Provisions for Ratification and Amendment.=--When the frame of government had been determined, the powers to be vested in it had been enumerated, and the restrictions upon the states had been written into the bond, there remained three final questions. How shall the Constitution be ratified? What number of states shall be necessary to put it into effect? How shall it be amended in the future? On the first point, the mandate under which the convention was sitting seemed positive. The Articles of Confederation were still in effect. They provided that amendments could be made only by unanimous adoption in Congress and the approval of all the states. As if to give force to this provision of law, the call for the convention had expressly stated that all alterations and revisions should be reported to Congress for adoption or rejection, Congress itself to transmit the document thereafter to the states for their review.