Which document outlines the structure of government in Illinois?

The Illinois Constitution is the primary document that defines and outlines the structure of government in Illinois. It serves as the foundational legal framework for the state, establishing the organization, powers, and functions of the various branches of government, including the legislative, executive, and judicial branches.

The Constitution details the roles and responsibilities of state officials, the legislative process, and the rights of citizens within the state, solidifying the principles of governance that guide Illinois. This document is essential for understanding how state governance operates, distinguishing it from federal governance, which is addressed in the U.S. Constitution.

The Illinois Bill of Rights, while an important document for protecting individual rights within Illinois, does not serve to define the overarching structure of government. Similarly, the Federalist Papers were essays that argued for the ratification of the U.S. Constitution and do not pertain specifically to Illinois governance. Overall, the Illinois Constitution fundamentally shapes the governmental landscape, making it the correct answer.