why did anti-federalists believe a bill of rights needed to be added to the constitution?

Anti-Federalists believed a Bill of Rights needed to be added to the Constitution because they feared the new national government would be too powerful and could threaten individual liberties and state sovereignty. They argued that the Constitution, as originally drafted, did not explicitly protect fundamental rights and that without a written Bill of Rights, those rights could be easily overridden by the federal government. The Bill of Rights would clearly define the limits of government power and serve as an immediate warning ("a fire bell") when people's rights were threatened. Anti- Federalists also worried that the supremacy clause and implied powers in the Constitution could endanger individual freedoms without explicit protections. They believed in retaining certain inalienable rights that should never be surrendered and insisted that these rights be clearly stated in the Constitution to prevent government overreach. Additionally, Anti-Federalists distrusted a distant, powerful central government that they thought would be unresponsive to the needs of local communities and states. Their pressure and demands for a Bill of Rights led Federalists, who initially opposed it, to agree to add such amendments to secure ratification of the Constitution. This compromise resulted in the adoption of the first ten amendments known as the Bill of Rights in 1791.