Mr. Madison thought it clear that the Legislatures were incompetent to the proposed changes. These changes would make essential inroads on the State Constitutions, and it would be a novel & dangerous doctrine that a Legislature could change the constitution under which it held its existence. There might indeed be some Constitutions within the Union, which had given a power to the Legislature to concur in alterations of the federal Compact. But there were certainly some which had not; and in the case of these, a ratification must of necessity be obtained from the people. He considered the difference between a system founded on the Legislatures only, and one founded on the people, to be the true difference between a league or treaty, and a Constitution. The former in point of moral obligation might be as inviolable as the latter. In point of political operation, there were two important distinctions in favor of the latter. 1. A law violating a treaty ratified by a pre-existing law, might be respected by the Judges as a law, though an unwise or perfidious one. A law violating a constitution established by the people themselves, would be considered by the Judges as null & void. 2. The doctrine laid down by the law of Nations in the case of treaties is that a breach of any one article by any of the parties, frees the other parties from their engagements. In the case of a union of people under one Constitution, the nature of the pact has always been understood to exclude such an interpretation. Comparing the two modes in point of expediency he thought all the considerations which recommended this Convention in preference to Congress for proposing the reform were in favor of State Conventions in preference to the Legislatures for examining and adopting it.