AP United States Government and Politics, AP exams, 25–36%

Unit 2: Interactions Among Branches of Government

Unit 2 is the largest unit in the course, covering Congress, the presidency, the federal courts, and the bureaucracy, together with the ways each checks the others. Structural detail matters here: chamber rules, formal and informal presidential powers, judicial review, and bureaucratic rule-making all appear in questions. Two required cases on redistricting sit in this unit.

Position: 2 of 5 units
Published weighting: 25–36% in the official framework
Topics covered: 7 topics in this guide

What is covered

Topics inside this unit.

These topics describe the scope students most often review for this part of AP United States Government and Politics. Treat them as a study checklist rather than an exhaustive list of what a single exam form can sample.

Congress: structure and powers: Enumerated and implied powers, differences between House and Senate rules, committees, and the budget process.
Congressional behavior and gridlock: Trustee, delegate, and politico models, divided government, filibuster and cloture, and polarization.
The presidency: formal and informal powers: Veto, appointments, and commander-in-chief authority alongside executive orders, agreements, and the bully pulpit, with Federalist No. 70 as the required document.
The federal judiciary: Judicial review from Marbury v. Madison, precedent and stare decisis, and Federalist No. 78 on judicial independence.
Checks on the judiciary: Legislation, constitutional amendment, appointments, and noncompliance as limits on judicial power, plus judicial activism and restraint.
The federal bureaucracy: Rule-making and discretionary authority, iron triangles and issue networks, and congressional oversight.
Representation and redistricting: Baker v. Carr on the justiciability of apportionment and Shaw v. Reno on racial gerrymandering.

Study tips

How to practice Branches.

Section-specific guidance that follows from how this material is usually tested.

Give this unit the most study time; its published weighting range is the largest in the course.
Build a checks-and-balances matrix showing what each branch can do to each of the others.
Practice explaining how a policy stalls, naming the specific institutional feature responsible.

Where this fits

Unit 2: Interactions Among Branches of Government is 2 of 5 units in the AP United States Government and Politics guide, and it carries a published weighting of 25–36% in the official framework. Use the full guide to balance it against everything else you have to review.

Back to the AP United States Government and Politics guide Official exam information

Sample Branches questions

Practice questions, not yet expert-reviewed

Original practice questions written to the published framework for this section. No expert has reviewed them, and they are not taken from any official exam. Try each one before you open the answer.

Question 1Foundational
Which required Supreme Court case established the power of judicial review over acts of Congress?
1. AMarbury v. Madison
2. BMcCulloch v. Maryland
3. CBaker v. Carr
4. DShaw v. Reno
Show answer
Answer: A. Marbury v. Madison
In 1803 Chief Justice Marshall declared part of the Judiciary Act of 1789 unconstitutional, establishing that the Court may void a federal statute that conflicts with the Constitution. McCulloch v. Maryland is the tempting distractor because Marshall wrote it too, but it concerned implied congressional power and state taxation, not the Court's authority to review statutes.
Key insight: Judicial review is not written in the Constitution; the Court claimed it in Marbury and Federalist No. 78 defended the logic in advance.
Question 2Foundational
In a Senate with all 100 seats filled, how many votes are needed to invoke cloture and end a filibuster on most legislation?
1. A60
2. B51
3. C67
4. D76
Show answer
Answer: A. 60
Cloture on most legislation requires three-fifths of senators duly chosen and sworn, which is 60 in a full Senate. The 67 distractor is the two-thirds threshold used for a conviction on impeachment and for proposing constitutional amendments, not for ending debate.
Key insight: A simple majority passes a bill, but 60 votes are usually needed just to get it to a vote.
Question 3Intermediate
Which required foundational document defends a single energetic executive as necessary for decisive and accountable government?
1. AFederalist No. 70
2. BFederalist No. 78
3. CFederalist No. 51
4. DThe Declaration of Independence
Show answer
Answer: A. Federalist No. 70
Federalist No. 70 argues that unity in the executive produces energy, secrecy, and dispatch, and that a single president is easier to hold responsible than a plural executive. Federalist No. 78 is the tempting distractor, but it defends an independent judiciary with life tenure as the least dangerous branch.
Key insight: Number the Federalist papers by branch: 10 for faction, 51 for separation of powers, 70 for the presidency, 78 for the courts.
Question 4Intermediate
What did the Supreme Court decide in Baker v. Carr (1962) about challenges to the drawing of legislative districts?
1. AApportionment challenges are justiciable in federal court
2. BDistricts must be drawn along existing county lines
3. CRacial gerrymandering violates the Fifteenth Amendment
4. DStates may not use multimember legislative districts
Show answer
Answer: A. Apportionment challenges are justiciable in federal court
Baker v. Carr held that unequal legislative apportionment raises an equal protection claim federal courts may decide, rejecting the view that districting is a nonjusticiable political question. The racial gerrymandering answer describes Shaw v. Reno, which was decided decades later under the equal protection clause.
Key insight: Baker opened the courthouse door to districting cases; the one-person-one-vote standard followed only because Baker made the issue justiciable.
Question 5Advanced
When the Supreme Court interprets the Constitution itself, what is the principal action Congress can take to overturn that interpretation?
1. APropose a constitutional amendment
2. BPass an ordinary statute reversing the ruling
3. CRefuse to confirm the justices who joined the opinion
4. DDirect the Department of Justice to ignore the decision
Show answer
Answer: A. Propose a constitutional amendment
An ordinary statute cannot override a constitutional holding, so reversing one requires amending the Constitution, which Congress can propose by two-thirds of both chambers before three-fourths of the states ratify. Passing a statute is the tempting distractor because it does work when the Court has merely interpreted a statute rather than the Constitution.
Key insight: Statutory rulings can be fixed with a new statute; constitutional rulings can only be undone by amendment or by the Court itself.

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Unit 2: Interactions Among Branches of Government