Which article of the Constitution establishes the Legislative Branch?

The answer is based on the fact that Article I of the United States Constitution specifically outlines the structure and powers of the Legislative Branch, which consists of two parts: the Senate and the House of Representatives. This article grants Congress the authority to create laws, regulate commerce, impose taxes, and manage government spending, among other responsibilities. It details the processes for how members of the legislative body are elected, the powers they hold, and the procedures they must follow in legislation. Understanding Article I is crucial for grasping how the legislative system functions within the framework of the federal government.

The other articles mentioned establish different branches of government or functions. Article II pertains to the Executive Branch, while Article III focuses on the Judicial Branch, and Article IV deals with states’ powers and their interaction with the federal government. Thus, the emphasis in Article I on the legislative function makes it the foundational element for the United States' law-making apparatus.