Module 2: The U.S. Congress — Structure, Membership & Powers

The House is apportioned by population and serves two-year terms; the Senate gives every state two seats regardless of population and serves staggered six-year terms — two chambers, deliberately constituted quite differently.

Example. California and Wyoming send wildly different numbers of representatives to the House based on population, but each sends exactly two senators — the same two-chamber structure treats population very differently depending on which chamber is at issue.

This structure is the direct product of a specific, real 1787 constitutional negotiation known as the Great Compromise (or Connecticut Compromise), proposed by Connecticut delegates Roger Sherman and Oliver Ellsworth at the Constitutional Convention. Large states favored the Virginia Plan, which apportioned representation purely by population; small states favored the New Jersey Plan, which gave every state equal representation regardless of size. The convention had genuinely deadlocked over this exact question for weeks, with small states threatening to walk away entirely rather than accept a purely population-based legislature that would leave them permanently outvoted. Sherman and Ellsworth’s compromise — population-based representation in one chamber, equal state representation in the other — broke the deadlock precisely by giving each faction its own chamber rather than forcing either side to fully accept the other’s model. The House and Senate’s genuinely different constituencies aren’t simply two ways of counting the same thing, they are the literal, negotiated price of the Constitution’s ratification in the first place.

Revenue bills must originate in the House. The House holds the sole power to impeach; the Senate holds the sole power to try impeachments and to give advice and consent on appointments and treaties.

Example. The House can vote to impeach an official by simple majority, but only the Senate’s own trial and two-thirds vote can actually remove that official from office — two genuinely separate, sequential steps.

United States v. Munoz-Flores, 495 U.S. 385 (1990), tested the Origination Clause’s real boundary. A federal statute imposed a special monetary assessment on people convicted of certain federal misdemeanors, and the bill creating it had actually started in the Senate, not the House. A defendant challenged his own assessment, arguing the statute was unconstitutional because it raised revenue but originated in the wrong chamber. The Supreme Court held the assessment wasn’t a genuine revenue-raising “Bill for raising Revenue” within the Origination Clause’s meaning at all — it was a fee tied to a specific regulatory or punitive purpose (funding crime victim assistance) rather than a general revenue measure meant to support government operations broadly, so the House-origination requirement never actually applied to it. Munoz-Flores is a genuinely useful reminder that the Origination Clause doesn’t reach every bill that happens to generate some incidental government income — it specifically targets bills whose real purpose is raising general revenue, a real, substantive line this section’s own client scenario (a tax credit program) sits clearly on the House-origination side of.

Unlike a state’s general police power, Congress has only enumerated powers — specific grants of authority listed primarily in Article I, Section 8 — meaning Congress must always trace any action back to an actual granted power.

Example. Congress can regulate interstate commerce because that power is specifically granted — but Congress can’t simply regulate any subject it finds important without tying that regulation back to some specific enumerated power.

The Tenth Amendment supplies the direct constitutional textual mirror to this enumerated-powers structure, confirming it wasn’t simply an interpretive convention: “The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people.” This is a genuine structural default, running the opposite direction from how state governments generally work — a state legislature typically holds a broad, general police power to regulate for public health, safety, welfare, and morals unless the state’s own constitution specifically restricts it, while Congress must affirmatively locate its authority in a real, enumerated (or properly implied) grant before acting at all. That reversed default is exactly why constitutional litigation over federal legislation so often centers on identifying which specific enumerated power actually supports a given statute — a question state legislation essentially never has to answer in the same way.

McCulloch v. Maryland established a broad reading of this clause — Congress may use means reasonably adapted to executing an enumerated power, even without a specific, separate listing for that exact mechanism, extending real, implied powers.

Example. Creating an administrative office to help enforce a regulatory program Congress has authority to enact is a classic implied power — a genuinely useful means, not itself separately enumerated, but reasonably connected to an actual granted power.

McCulloch v. Maryland, 17 U.S. 316 (1819), decided this on real, concrete facts. Congress had chartered the Second Bank of the United States — a power nowhere explicitly listed in Article I, Section 8 — and Maryland then tried to tax the Bank’s Baltimore branch, hoping to either raise state revenue from it or drive it out of the state entirely. Chief Justice John Marshall first held chartering the Bank was a legitimate exercise of implied power: a national bank was a genuinely useful, reasonably adapted means of executing Congress’s actual enumerated powers over currency, taxation, and borrowing, even though “bank” appears nowhere in the constitutional text. Marshall then held Maryland could not tax the federal Bank at all, reasoning in his own famous phrase that “the power to tax involves the power to destroy” — letting a state tax a legitimate federal instrumentality would let states tax federal operations out of existence entirely, subordinating federal supremacy to state discretion. McCulloch is the reason this section describes the Necessary and Proper Clause as genuinely broad: Marshall’s opinion deliberately rejected a narrow reading requiring a means to be absolutely indispensable, holding “necessary” instead meant merely useful and appropriate.

Congress may regulate activity substantially affecting interstate commerce, including genuinely economic activity aggregated across all instances nationwide (Wickard v. Filburn) — but Lopez and Morrison limit this reach against genuinely non-economic activity.

Example. Regulating a category of nationwide commercial lending transactions, individually small but substantial in the aggregate, fits the Commerce Clause’s core scope — a very different case from regulating gun possession near schools, the kind of non-economic activity Lopez addressed.

Wickard v. Filburn, 317 U.S. 111 (1942), supplies the real facts behind the aggregation principle this section relies on. Roscoe Filburn was an Ohio farmer who grew wheat partly to sell but mostly to feed his own livestock and household, and a federal quota under the Agricultural Adjustment Act capped how much wheat he could grow. Filburn exceeded his quota, but only with wheat he never intended to sell in any market — he grew it for personal, on-farm consumption. The government fined him anyway, and Filburn argued that wheat he never sold couldn’t possibly count as “interstate commerce” at all. The Supreme Court disagreed, reasoning that although Filburn’s own excess wheat was trivial standing alone, if every farmer in his position grew similarly excess home-consumed wheat, the aggregate effect would substantially reduce nationwide demand for wheat purchased on the open market — undermining the very price-support scheme Congress had enacted under its commerce power. Wickard is the reason even non-market, personal-use economic activity can fall within Congress’s reach once aggregated nationwide, exactly the principle this module’s exercises test.

Standing committees review, hold hearings on, and mark up legislation before it ever reaches the floor — the real working engine of the legislative process, where far more bills die than ever reach a full vote.

Example. A bill referred to a relevant committee might sit there indefinitely without action — never reaching the floor at all — while another bill moves through committee quickly with strong chair support.

The modern committee system in something close to its current shape dates to a specific statute: the Legislative Reorganization Act of 1946. Before that Act, the House alone had grown to more than 80 standing committees, many with overlapping or barely-used jurisdictions, making it genuinely difficult to track where a given bill would even land or to hold any single committee meaningfully accountable for a policy area. The 1946 Act consolidated the House down to 19 standing committees (and similarly streamlined the Senate), assigned each a defined subject-matter jurisdiction, and gave committees professional staff for the first time — replacing an ad hoc, sprawling structure with the recognizably modern one where a bill’s committee assignment is a real, predictable, and often outcome-determinative event.

The Speaker of the House, Senate floor leaders, and the party whip system organize each chamber’s business — coordinating priorities, counting votes, and shaping which legislation actually moves forward.

Example. A bill with broad rank-and-file support can still stall if leadership declines to schedule it for a floor vote — real, practical influence beyond any individual member’s formal vote.

That gatekeeping power has a real, named modern norm behind it: the “Hastert Rule,” named for former Speaker Dennis Hastert. Under this informal practice, a Speaker generally won’t bring a bill to the House floor for a vote unless it is supported by a majority of the Speaker’s own majority party — even if the bill would pass with support from a broader, cross-party majority of the whole House. The Hastert Rule isn’t a written House rule or constitutional requirement at all; it’s simply a leadership practice a Speaker can and sometimes does depart from under real political pressure. It is a genuinely concrete illustration of exactly the kind of practical, non-formal influence this section describes: a bill can have the votes to pass the full floor and still never get there, because scheduling power itself is a real form of legislative control.