Which amendment best addresses the fears of the federalist like Madsen that rights and powers not specifically listed in the constitution or bill of rights will not be protected in the future

The Ninth Amendment

Explanation:

The Federalists argued for the rights of the people. They wanted the separation of powers within the government, in order to protect the rights of the citizens. They wanted to have a strong government and a strong country.

Some Federalists were nervous about the rights and powers that were not listed within the Constitution or the Bill of Rights. They were worried about the rights that weren't listed about being protected or not.

The Ninth Amendment best addresses this, as it says that the rights that are not listed within the Constitution, still belong to the people. The citizens are not just to be limited to the rights that are listed, it is more than that.

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hope this : )