In what ways is the U. S. Constitution influenced by the political ideologies of republicanism, democracy, and federalism?

It could be said that republicanism, democracy, and federalism are the most important political ideologies in the U. S. Constitution.

Explanation:

Republicanism - The Constitution establishes a republican government that is composed by elected officials instead of a unelected monarchy or dinasty. The government is divided in three branches: the executive (president), the legislative (congress), and the judiciary (the courts), which configurates a form of republican government.

Democracy - The United States is a democracy because the government serves the people, and the people have the right to overthrow or change the government. This right is established in the U. S. Constitution.

Federalism - The Constitution establishes a federal republic, composed of several states under a perpetual union. The federal government only has the powers explicitely given to it by the U. S. Constitution, anything else is left to the states.