The Commerce Power and Federal Legislative Authority: every key term you need (+ practice quiz)
25 flashcard terms for Constitutional Law Topic 2, written to match the course framework. Study them here, then drill them as interactive flashcards, or test yourself with the 15-question quiz — free, no account needed.
The premise that the federal government holds only the powers the Constitution grants, so every act of Congress must be traced to a specific grant such as commerce, taxing, spending, or war.
Commerce Clause
The grant in Article I, Section 8 empowering Congress to regulate commerce with foreign nations, among the several states, and with the Indian tribes. It is the most heavily used source of federal legislative power.
Gibbons v. Ogden
Defined commerce broadly as commercial intercourse including navigation, and held that federal authority reaches activity within a state when it concerns more states than one, displacing a state steamboat monopoly.
Necessary and Proper Clause
The clause authorizing Congress to enact laws needed to carry out its enumerated powers. It confers no freestanding power but supplies means for ends otherwise within federal authority.
McCulloch v. Maryland
Upheld the national bank as a convenient means to legitimate federal ends and held that a state may not tax an instrument of the federal government, since the power to tax involves the power to destroy.
Channels of interstate commerce
The first Lopez category, covering highways, waterways, air routes, and the mails. Congress may regulate and protect these arteries even when the regulated conduct occurs locally.
Instrumentalities of interstate commerce
The second Lopez category, covering trucks, trains, aircraft, and persons or things moving in commerce. Congress may protect them from threats arising wholly within one state.
Substantial effects test
The third Lopez category, permitting regulation of intrastate activity that substantially affects interstate commerce. Since 1995 the regulated activity generally must be economic in character.
Aggregation principle
The rule that in evaluating substantial effects a court considers the cumulative impact of a whole class of activities rather than the trivial contribution of a single actor.
Wickard v. Filburn
Sustained wheat quotas as applied to grain grown for home consumption, reasoning that in the aggregate such home production would depress demand in the national wheat market.
NLRB v. Jones and Laughlin Steel
The 1937 turning point upholding the National Labor Relations Act as applied to a manufacturer, abandoning the rigid direct and indirect effects line for a practical close and substantial relation test.
Direct and indirect effects test
The pre-1937 approach that separated production from commerce and shielded manufacturing, mining, and agriculture from federal regulation unless the effect on commerce was labeled direct.
Hammer v. Dagenhart
Struck a federal ban on interstate shipment of goods made with child labor as a pretextual attempt to regulate production. It was overruled in 1941.
United States v. Darby
Upheld the Fair Labor Standards Act, overruled the child labor decision, and treated the motive behind an otherwise valid commerce regulation as beyond judicial inquiry.
Heart of Atlanta Motel v. United States
Sustained the public accommodations title of the Civil Rights Act of 1964 as a commerce measure, pointing to the burdens racial discrimination imposed on interstate travel and lodging.
Katzenbach v. McClung
Companion case upholding coverage of a local restaurant because it purchased a substantial volume of food that had moved in interstate commerce.
United States v. Lopez
The 1995 decision invalidating the Gun-Free School Zones Act, the first commerce holding against Congress in decades, because possessing a gun near a school is not economic activity affecting commerce.
United States v. Morrison
Struck the civil damages remedy of the Violence Against Women Act, refusing to aggregate noneconomic violent crime and rejecting a but-for chain of economic consequences.
Gonzales v. Raich
Upheld federal prohibition of homegrown medical marijuana as applied to state-authorized patients, treating the ban as an essential part of a comprehensive scheme regulating an interstate commodity market.
Jurisdictional element
A statutory clause requiring proof in each case that the conduct involved interstate commerce. Its presence helps rebut the objection that a federal law sweeps in purely local activity.
Activity and inactivity distinction
The idea that the commerce power presupposes existing activity to regulate, so Congress may not compel individuals to enter a market by purchasing a product they have chosen to avoid.
NFIB v. Sebelius
Held that the individual insurance mandate exceeded the commerce and necessary and proper powers, yet survived as an exercise of the taxing power because the exaction functioned as a tax on going uninsured.
Taxing power
Congress may lay taxes for the general welfare. A measure counts as a tax rather than a penalty when it raises revenue, carries no scienter requirement, and is not prohibitively burdensome.
City of Boerne v. Flores
Established the congruence and proportionality test, holding that Congress may remedy or deter constitutional violations under Section 5 of the Fourteenth Amendment but may not redefine the substance of the right.
Katzenbach v. Morgan
Upheld a federal ban on English literacy tests for certain voters, articulating a broad theory of enforcement authority that later decisions have significantly narrowed.