Final answer:
The Anti-Federalists demanded the Bill of Rights to be added to the Constitution to gain their support for ratification.
Step-by-step explanation:
The Anti-Federalists demanded the Bill of Rights to be added to the Constitution in order to gain their support for ratification. The Anti-Federalists were concerned that the Constitution did not contain enough protections for individual rights and liberties. They believed that the inclusion of a Bill of Rights would provide explicit guarantees of these rights and help prevent the government from becoming too powerful.
Learn more about The Anti-Federalists and the Bill of Rights