Question

which group of founders was in favor of adding a Bill of Rights to the Constitution

Answer 1

The group of founders was in favor of adding a Bill of Rights to the Constitution were:  the Federalists. 
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Answer 2

Answer:

The group of founders that was in favor of adding a Bill of Rights to the Constitution were the Anti-Federalists.

Explanation:

The Bill of Rights is the set of the first ten amendments to the Constitution, which were adopted on September 25, 1789, and entered into force on December 15, 1791, after a long period of ratification by individual states.

The Bill of Rights was written by James Madison and a special commission. Madison was undoubtedly influenced by the debates of the assembly of Virginia and by a brochure grouping together the amendments proposed by the states. His ambition was to limit the powers of the federal government, but also to grant individual rights to American citizens.