The "founders" were not a monolithic entity with a single opinion. The history of the Bill of Rights makes it quite clear that there were many founders in favo

The "founders" were not a monolithic entity with a single opinion. The history of the Bill of Rights makes it quite clear that there were many founders in favor of those amendments. The Constitution was ratified in June of 1788. The 1st Congress convened in March of 1789, and the Bill of Rights was introduced in June of 1789. I think it is quite reasonable to consider the Constitution and the subsequent Bill of Rights as part of the foundational principles of the nation.