AP US Government · Lesson 9

Unit 1 Review: Where power comes from

A cumulative review and practice set for Unit 1: democratic ideals, the Articles, the Constitution, foundational documents, federalism, McCulloch, and Lopez.

Unit 1 in one view: where power comes from

American government is easier to reconstruct when each institution is tied back to a problem of power. The founding documents disagree about how strong the national government should be, the Constitution divides authority several different ways at once, and federalism leaves many disputes unresolved even today. McCulloch v. Maryland and United States v. Lopez show that those same arguments continue directly in constitutional law.

This review moves across the whole unit: democratic ideals, the Articles and the Constitution, the Federalist and Anti-Federalist debate, federalism, and the two required cases that define the reach of national power.

The unit in one table

The unit's ideas and where each one lives
IdeaWhere it appears
Natural rights, popular sovereignty, limited government, republicanismDeclaration of Independence; U.S. Constitution; Gettysburg Address
Equality, national power, and wartime executive actionEmancipation Proclamation; full civil-rights treatment later in the book
Weak national taxation, commerce regulation, executive enforcement, courts, and exclusive coinage controlArticles of Confederation
Bicameral Congress, separated powers, checks and balancesU.S. Constitution; Federalist No. 51
Ratification compromises and a lawful amendment processGreat Compromise; Electoral College; Three-Fifths Compromise; 1808 importation compromise; Bill of Rights agreement; Article V
Large republic dilutes faction / large republic weakens accountabilityFederalist No. 10; Brutus No. 1
Mixed national-state design and multiple access pointsFederalist No. 39
Revenue sharing, block grants, categorical grants, mandatesFiscal federalism
Implied national power and limits on commerce powerMcCulloch v. Maryland; United States v. Lopez
National constitutional limits on state actionFourteenth Amendment Due Process and Equal Protection Clauses

How to use the table

Start with the problem, not the label. If the scenario asks where authority comes from, think popular sovereignty and natural rights. If it asks who can stop whom inside the national government, think separation of powers and the checks in Federalist No. 51. If it asks which level of government acts, think federalism: reserved, exclusive, and concurrent powers, the Supremacy Clause, and the money tools that connect Washington to the states. If it asks how far Congress may go, think McCulloch for the generous reading of means and Lopez for the limit on the commerce power.

Worked example: comparing evidence for a thesis

Thesis: the Constitution divides governing authority both to prevent tyranny and to preserve a meaningful role for the states.

  • Evidence option 1: Federalist No. 51's account of separated institutions checking one another. Fits the thesis directly: this is the institutional-check half of the claim.
  • Evidence option 2: Federalist No. 39's account of the Constitution's mixed federal and national character. Fits the thesis directly: this is the preserved-state-role half of the claim.
  • Evidence option 3: Federalist No. 10's account of diluting factions across an extended republic. Does not fit as directly. Federalist No. 10 addresses societal faction, not the division of governing authority this thesis specifically claims.

Worked example: SCOTUS Comparison with an infrastructure bank

Nonrequired scenario. Congress creates a national infrastructure bank to fund highway projects, chartering it as a corporation much like the national bank at issue in McCulloch v. Maryland. A state challenges Congress's authority, arguing the Constitution nowhere lists an infrastructure bank as an enumerated power.

Shared provision: the Necessary and Proper Clause, the same clause tested in McCulloch. Comparison: like the national bank, an infrastructure bank is not itself an enumerated power, but it is a reasonable means of carrying out powers Congress does hold, including the power to regulate interstate commerce and spend for the general welfare. Applying McCulloch's reasoning, the facts here point toward upholding the infrastructure bank, since Congress may choose appropriate means to execute powers it genuinely holds.

Notice the sequence: name the shared provision, state what the required case held, then say whether the new facts push toward the same outcome or a different one and why.

Common traps in Unit 1

  • The Declaration states principles; it creates no institution. Institutions come from the Constitution.
  • The Articles did give Congress real powers (war, diplomacy, western lands); the weaknesses were taxation, commerce, coinage control, an executive, courts, and amendment.
  • A veto override needs two-thirds of both chambers; conviction on impeachment needs two-thirds of the Senate, while the House impeaches by simple majority.
  • Federalist No. 10 is about faction; No. 51 is about institutional checks; No. 39 is about the mixed federal-national structure; Brutus No. 1 is about distance and consolidation.
  • The Supremacy Clause settles conflicts only when the federal action is already valid.
  • McCulloch and Lopez do not contradict each other: broad means, but still tied to an enumerated power.

Practice set

Exam mode

Exam mode runs on the clock of the real section and holds the explanations until you submit. You then see your score and an explanation for each question.

  • The exam covers 13 questions and 6 written responses.
  • A single timer of 40 min runs for the whole set.

Study mode

Study mode lets you answer each question at your own pace and shows the explanation as soon as you check your answer.

  • The 19 questions appear in a new order each session.
  • The explanation opens when you check each answer.