Final answer:
The opponents of the Constitution demanded inclusion of the Bill of Rights because they feared abuse of power by the federal government.
Step-by-step explanation:
The opponents of the Constitution demanded inclusion of the Bill of Rights because they feared abuse of power by the federal government.
The Anti-Federalists, who opposed the Constitution, believed that the centralized power in the Constitution threatened the rights and liberties of ordinary citizens. They demanded protection for individual rights and several states made the passing of a bill of rights a condition for accepting the Constitution.
The Bill of Rights was added to the Constitution to address these concerns and protect the individual liberties of the citizens from potential abuses of power by the federal government.