"All powers not delegated to the United States by the Constitution . . . are reserved to the States respectively, or to the people." This language, drafted by _______ and incorporated into the _______ Amendment of the Bill of Rights was intended to address the concerns of the Antifederalists.

http://en.wikipedia.org/wiki/Tenth_Amendment_to_the_United_States_Constitution

The language, "All powers not delegated to the United States by the Constitution . . . are reserved to the States respectively, or to the people," was drafted by James Madison and incorporated into the Tenth Amendment of the Bill of Rights.

To find this answer, you can start by understanding the context. The Bill of Rights was a set of amendments added to the United States Constitution to address the concerns of the Antifederalists. The Antifederalists were a group of individuals who opposed the ratification of the Constitution, fearing that it would create a strong central government with limited individual liberties and insufficient protection for states' rights.

Next, locate the specific amendment that addresses the concerns of the Antifederalists. In this case, it is the Tenth Amendment. The Tenth Amendment is part of the Bill of Rights and is the last amendment in that document.

Finally, identify the drafter of the specific language. In this case, it was James Madison, who is often called the "Father of the Constitution" for his significant contributions to its drafting and ratification.

Therefore, the answer is that the language, "All powers not delegated to the United States by the Constitution . . . are reserved to the States respectively, or to the people," was drafted by James Madison and incorporated into the Tenth Amendment of the Bill of Rights.