[Publius]

In Federalist #43, Madison indicated that because the Constitution was a contract or compact, not a treaty, it would be governed under contract law, not treaty law. Under treaty law, if you think you're getting a raw deal, you can simply withdraw from the treaty by notifying the other partners of your withdrawal. Under contract law, if you think you're getting a raw deal, you must ask the other parties to the contract for permission to withdraw.

Madison believed that unanimous consent would be required for even one state to secede because that act of secession would dissolve the Union and abrogate the contract.

Under Madison's guidelines, all the states would have to approve the withdrawal of Texas, and then the states could, if they wished, reinstate the Union without Texas.

[DoodleDawg]

Madison believed that unanimous consent would be required for even one state to secede because that act of secession would dissolve the Union and abrogate the contract.

I know that Madison said that a proper secession required the consent of the other states but I'm not aware where he said it required unanimous consent.