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Reading Time: 7 min
Last Updated: September 3, 2026
Main Ideas: 5
Reading Time: 7 min
Last Updated: September 3, 2026
Main Ideas: 5

Topic 2.11 Notes – Checks on the Judicial Branch

Verified for 2027 AP® U.S. Government & Politics Exam
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Judicial review gives the Supreme Court the power to decide whether laws and government actions fit the Constitution. That power makes the Court a major check on the other branches, but it also creates a constant debate over how much power unelected justices should have and how the elected branches can push back.

Judicial Review and Why Supreme Court Power Is Debated

Judicial review means courts can rule that a law or executive action violates the Constitution and refuse to uphold it. Marbury v. Madison (1803) established that power for the Supreme Court.

Article III creates the federal judiciary, and Federalist No. 78 explains why courts need independence. Hamilton’s point was that judges must be able to use their judgment to defend the Constitution, even when elected officials want something else.

That lets the Court invalidate:

  • acts of Congress if a federal law violates the Constitution
  • state laws if they conflict with the Constitution
  • executive actions if the president or agencies go beyond constitutional limits

This broader checks-and-balances diagram is a good reminder of where judicial review fits. For this section, focus on the judicial branch checks that let courts declare laws and executive actions unconstitutional.

Study guide illustration

The argument starts here. Justices are unelected and serve for life during good behavior, so they can block policies chosen by elected majorities. That is the countermajoritarian difficulty. A small group of judges can override what most voters, through their representatives, wanted.

The defense of strong judicial review is that the Constitution outranks temporary majorities. Courts can protect individual rights, constitutional limits, and political minorities when elected branches will not. On the AP exam, the debate is usually about how aggressively judicial review should be used, not whether it exists.

Judicial Activism and Judicial Restraint

These are the two main ways people describe the Court’s use of judicial review.

Judicial activism

Judicial activism means the Court uses its power more assertively. It is more willing to:

  • strike down laws
  • invalidate executive actions
  • broaden constitutional meaning
  • overturn precedent

A classic example is Brown v. Board of Education (1954). The Court rejected school segregation and broke from the logic tied to Plessy v. Ferguson. That is activist in AP Gov terms because the Court overturned old precedent and intervened strongly.

Judicial restraint

Judicial restraint means the Court uses judicial review more cautiously. It usually defers to elected branches and follows precedent unless a law clearly violates the Constitution.

This is tied to stare decisis, which means following precedent for stability and predictability. Restraint does not mean the Court never overturns precedent. It means it does so carefully.

How they compare

  • Activism = assertive use of judicial power
  • Restraint = cautious use of judicial power

Neither one is automatically liberal or conservative. AP questions often test this by asking whether the Court is overturning precedent or deferring to elected institutions.

Formal Checks by Congress, the President, and the States

The Court is powerful, but the other branches still have real tools.

CheckHow it worksExample
Changing lawCongress can amend a statute after the Court interprets itLedbetter v. Goodyear (2007) led to the Lilly Ledbetter Fair Pay Act (2009)
Constitutional amendmentOnly an amendment can clearly override a constitutional rulingPollock (1895) led to the 16th Amendment
AppointmentsPresident nominates, Senate confirms, shifting ideology over timeVacancies matter because justices serve for life
Jurisdiction strippingCongress can limit appellate cases the Court hearsEx parte McCardle (1869)

The biggest distinction here is this. Congress can respond more easily when the Court interpreted a federal statute. Congress cannot simply pass a normal law to erase a constitutional interpretation.

Limits on the Court’s Practical Power

The Court has judgment, but it does not have its own army or bureaucracy to carry decisions out.

Delayed or resisted implementation

Brown v. Board declared segregation unconstitutional in 1954, but change came slowly. Brown II (1955) used the phrase “with all deliberate speed,” which gave room for delay. In Little Rock in 1957, Governor Orval Faubus resisted desegregation, and President Eisenhower sent federal troops to enforce the ruling.

Study guide illustration

Little Rock school desegregation, 1957

Remedies affect real impact

The Court’s power also depends on the remedy it allows.

  • Swann v. Charlotte-Mecklenburg (1971) allowed stronger desegregation remedies like busing
  • Milliken v. Bradley (1974) limited interdistrict remedies unless multiple districts caused the violation

Other institutional checks

  • Congress sets the size of the Court by statute.
  • FDR’s 1937 court-packing plan failed, but it showed Congress could try to reshape the Court.
  • Impeachment exists for misconduct, not disagreement with rulings.
  • Samuel Chase was impeached in 1804 and acquitted in 1805. No Supreme Court justice has been removed that way.

The Big Pattern

The Court checks the other branches through judicial review. The other branches check the Court through legislation, amendments, appointments, jurisdiction, structure, and enforcement.

Supreme Court power is strongest in constitutional interpretation. It is weaker in enforcement, because other officials often decide how fast and how fully a ruling becomes reality.

Key Takeaways

Judicial review lets the Court strike down laws and executive actions, and Marbury v. Madison is the case that established it.
The central debate is about how far the Court should go, because life-tenured justices can block elected majorities.
Judicial activism and judicial restraint describe approaches to using judicial review, not liberal versus conservative outcomes.
Congress can more easily reverse a statutory interpretation than a constitutional ruling.
A constitutional amendment is the clearest way to override a Supreme Court constitutional decision, but Article V makes that rare.
Appointments matter because they reshape the Court over time, not because they instantly erase precedent.
Congress can limit the Court’s appellate jurisdiction, but it cannot abolish the Supreme Court itself.
The Court’s real-world power depends heavily on enforcement and remedies, which is why Brown’s impact took years to unfold.

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