Answer:
both houses of Congress and individual state legislatures.
Explanation:
In American history, people those who supported the Ratification of the Constitution of 1787 to 1788 were known as the Federalists. They were a strong national republic.
On the other hand those who opposed the Constitution's ratification were known as anti-federalists. They were in support of small localized government. But the anti-federalists were not as organised as the federalists.
Both the groups, Federalists as well as the Anti-Federalists were much concerned about preservation of liberty.
They worked out for the amendment of the Constitution which involved the House of Congress as well as the individual state legislatures.
