James Madison, John Jay, and Alexander Hamilton were the authors of the Federalist Papers which were a string of 85 essays that supported the US Constitution.
Answer:
<em>A. 2</em><em> </em><em>years</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>
Divides the powers into Branches - Separation of powers
Divides the power between central and state govern. - Federalism
Each Branch of govern. - Checks and Balances