Comprehensive Study Guide: Structure, Roles, and Powers of the United States Congress

Bicameral Legislature: Established under Article I of the U.S. Constitution, dividing legislative power into two distinct chambers.
Historical Antecedent: Replaced the unicameral system of the Articles of Confederation to balance equal state representation with population-based representation.

Representation: Equal representation across states, with $2$ senators per state ( $100$ total members).
Qualifications & Terms: Requires a minimum age of $30$ and $6$ -year terms to insulate members from short-term public pressure.
Role & Focus: Focuses on broad national issues rather than localized district details.

Representation: Population-based representation capped at $435$ total members, with every state guaranteed at least $1$ seat.
Census & Reapportionment: Seats are reapportioned every $10$ years based on national census demographic shifts.
Qualifications & Terms: Requires a minimum age of $25$ and $2$ -year terms, maintaining high responsiveness to local district constituents.

Core Purpose: Holds exclusive constitutional authority to make federal laws.
Passage of Legislation: Requires identical versions of a bill to pass both chambers before presidential submission.
Debate Rules: Senate rules allow relaxed, unlimited debate; House rules strictly limit debate per member due to chamber size.

Enumerated Powers (Explicitly listed):
1. Passing a Federal Budget: Exercising the "power of the purse".
2. Raising Revenue: Collecting income taxes, tariffs, and other taxes.
3. Coining Money: Establishing a uniform national currency.
4. Declaring War: Reserving war authority to the legislative branch.
5. Raising and Maintaining Armed Forces: Preserving civilian legislative military control.
Implied Powers: Authorized by the Necessary and Proper Clause (Elastic Clause) to carry out enumerated powers across economic, environmental, and social domains.