CHOICE Outstanding Academic Title Winner of the George Washington Book PrizeWhen the delegates left the Constitutional Convention in Philadelphia in September 1787, the new Constitution they had written was no more than a proposal. Elected conventions in at least nine of the thirteen states would have to ratify it before it could take effect. There was reason to doubt whether that would happen. The document we revere today as the foundation of our country’s laws, the cornerstone of our legal system, was hotly disputed at the time. Some Americans denounced the Constitution for threatening the liberty that Americans had won at great cost in the Revolutionary War. One group of fiercely patriotic opponents even burned the document in a raucous public demonstration on the Fourth of July.