3. Which principle of American government was written into the Constitution but fully developed and explained in the Federalist Papers? the President's war powers the implied powers of state governments generous support for the military how checks and balances work

## Step 1<br />The question is asking about a principle of American government that was written into the Constitution but fully developed and explained in the Federalist Papers. The Federalist Papers are a collection of 85 articles and essays written by Alexander Hamilton, James Madison, and John Jay under the pseudonym "Publius". These papers were written to promote the ratification of the United States Constitution.<br /><br />## Step 2<br />The options provided are: the President's war powers, the implied powers of state governments, generous support for the military, and how checks and balances work.<br /><br />## Step 3<br />The Federalist Papers are known for their detailed explanation of the checks and balances system, which is a principle of American government. This system is designed to prevent any one branch of government from becoming too powerful.<br /><br />## Step 4<br />The other options, such as the President's war powers, the implied powers of state governments, and generous support for the military, are not the main focus of the Federalist Papers.