Federalist No. 15
Federalist No. 15, authored by Alexander Hamilton under the pen name Publius, is the fifteenth of 85 essays. Titled "The Insufficiency of the Present Confederation to Preserve the Union", Hamilton discusses the failures of the then current Articles of Confederation at ensuring the proper functions of government.
One of Hamilton's chief concerns was the insufficient power of the national government to carry forth its narrowly Enumerated powers, leading to multiple sovereigns among the thirteen states. Any laws passed were then nothing more than suggestions for the states to follow.
It was published on December 1, 1787.