Answer:
The Anti-Federalists opposed the ratification of the 1787 U.S. Constitution because they feared that the new national government would be too powerful and thus threaten individual liberties, given the absence of a bill of rights.
Explanation:
During the debate over drafting and ratification, these men were known as Federalists. They designed the constitutional structure, yet they resisted including a Bill of Rights. In 1789, when Rep. Madison introduced the first 10 amendments in the First Congress, he was making a concession to the Anti-Federalists.