Describe the structure and powers of Congress and trace the formal steps by which a bill becomes a law.
Article I creates a bicameral Congress made of two chambers with different rules, on purpose, so that each checks the other. The House of Representatives has 435 members, apportioned among the states by population and reapportioned after each ten-year census; representatives serve two-year terms, and all revenue (tax) bills must originate there. The Senate has 100 members, exactly two from each state regardless of population, serving staggered six-year terms so that only about a third of the Senate is up for election in any given cycle; the Senate alone confirms presidential appointments and ratifies treaties (by two-thirds vote). This design balances the House's closeness to shifting public opinion (short terms, population-based) against the Senate's built-in stability and protection for smaller states (long terms, equal representation).
Congress's enumerated powers, mostly listed in Article I, Section 8, include taxing and spending, regulating commerce, declaring war, and raising an army and navy, plus, crucially, the Necessary and Proper Clause, which lets Congress pass laws "necessary and proper" for carrying out its other powers, a broad grant that has stretched Congress's real authority well beyond a strict reading of the enumerated list alone. Most of Congress's real work happens in committees, where members with relevant expertise hold hearings, gather evidence, and revise bills before the full chamber ever votes. The formal path a bill travels is demanding by design: a member introduces it, a committee studies, amends, or kills it, the full chamber debates and votes, the OTHER chamber must independently pass a matching version (often requiring a conference committee to reconcile differences between House and Senate versions), and finally the president signs it into law or vetoes it, a veto Congress can override only with a two-thirds vote in both chambers. Most bills introduced in Congress never make it through all of these steps.
Mastery looks like: They can describe the size, term length, and special powers of the House and Senate, and correctly sequence the full path of a bill from introduction to becoming law, including the override process.
Common stumbles: Confusing which chamber has 435 vs. 100 members or two-year vs. six-year terms, or forgetting that BOTH chambers must pass identical bill text before it reaches the president.