Which Article of the Constitution addresses the powers of the legislative branch?

The powers of the legislative branch are specifically outlined in Article I of the Constitution. This article establishes Congress, which is divided into two chambers: the House of Representatives and the Senate. Article I details the structure, powers, and responsibilities of Congress, including the authority to make laws, levy taxes, regulate commerce, declare war, and confirm presidential appointments, among others. This framework is crucial as it delineates how the legislative branch interacts with the other branches of government, thereby playing a key role in the system of checks and balances that is foundational to the Constitution. The other articles pertain to different branches and functions of the government; for instance, Article II addresses the executive branch while Article III focuses on the judiciary.