Katzenbach v. Morgan
E87994
Fourteenth Amendment case
United States Supreme Court case
constitutional law case
voting rights case
Katzenbach v. Morgan is a 1966 U.S. Supreme Court case that upheld Congress’s power under the Fourteenth Amendment to prohibit certain state voting restrictions, reinforcing federal authority to protect voting rights.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Katzenbach v. Morgan canonical | 8 |
| Katzenbach | 1 |
| Katzenbach v. Morgan, 384 U.S. 641 (1966) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T699648 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Katzenbach v. Morgan Context triple: [Enforcement Clause, usedInCase, Katzenbach v. Morgan]
-
A.
Katzenbach v. McClung
Katzenbach v. McClung is a 1964 U.S. Supreme Court case that upheld the federal government’s power to prohibit racial discrimination in local restaurants under the Civil Rights Act of 1964.
-
B.
South Carolina v. Katzenbach
South Carolina v. Katzenbach is a 1966 U.S. Supreme Court decision that upheld the constitutionality of key provisions of the Voting Rights Act of 1965, affirming broad federal power to combat racial discrimination in voting.
-
C.
Bolling v. Sharpe
Bolling v. Sharpe is a 1954 U.S. Supreme Court case that held racial segregation in Washington, D.C. public schools unconstitutional under the Fifth Amendment’s Due Process Clause.
-
D.
Gebhart v. Belton
Gebhart v. Belton was a landmark Delaware school segregation case whose rulings in favor of Black students became one of the four consolidated cases decided in Brown v. Board of Education, contributing to the Supreme Court’s rejection of “separate but equal” in public education.
-
E.
Briggs v. Elliott
Briggs v. Elliott was a landmark federal court case from South Carolina challenging racial segregation in public schools, and it became one of the key cases consolidated into Brown v. Board of Education.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Katzenbach v. Morgan Target entity description: Katzenbach v. Morgan is a 1966 U.S. Supreme Court case that upheld Congress’s power under the Fourteenth Amendment to prohibit certain state voting restrictions, reinforcing federal authority to protect voting rights.
-
A.
Katzenbach v. McClung
Katzenbach v. McClung is a 1964 U.S. Supreme Court case that upheld the federal government’s power to prohibit racial discrimination in local restaurants under the Civil Rights Act of 1964.
-
B.
South Carolina v. Katzenbach
South Carolina v. Katzenbach is a 1966 U.S. Supreme Court decision that upheld the constitutionality of key provisions of the Voting Rights Act of 1965, affirming broad federal power to combat racial discrimination in voting.
-
C.
Bolling v. Sharpe
Bolling v. Sharpe is a 1954 U.S. Supreme Court case that held racial segregation in Washington, D.C. public schools unconstitutional under the Fifth Amendment’s Due Process Clause.
-
D.
Gebhart v. Belton
Gebhart v. Belton was a landmark Delaware school segregation case whose rulings in favor of Black students became one of the four consolidated cases decided in Brown v. Board of Education, contributing to the Supreme Court’s rejection of “separate but equal” in public education.
-
E.
Briggs v. Elliott
Briggs v. Elliott was a landmark federal court case from South Carolina challenging racial segregation in public schools, and it became one of the key cases consolidated into Brown v. Board of Education.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
Fourteenth Amendment case
ⓘ
United States Supreme Court case ⓘ constitutional law case ⓘ voting rights case ⓘ |
| areaOfLaw |
civil rights law
ⓘ
constitutional law ⓘ election law ⓘ |
| citation | 384 U.S. 641 ⓘ |
| concurrenceBy | William O. Douglas ⓘ |
| constitutionalProvisionInvoked |
Equal Protection Clause
ⓘ
Section 5 Enforcement Clause of the Fourteenth Amendment ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| court | Supreme Court of the United States ⓘ |
| decisionDate | 1966-06-13 ⓘ |
| dissentBy |
Byron R. White
ⓘ
John M. Harlan II ⓘ Potter Stewart ⓘ |
| fullName | Katzenbach v. Morgan self-link ⓘ |
| holding |
Congress may use its power under Section 5 of the Fourteenth Amendment to prohibit enforcement of state laws that it deems to violate equal protection, even if the Supreme Court has not independently found a constitutional violation
ⓘ
Section 4(e) of the Voting Rights Act of 1965 is a valid exercise of Congress’s power under Section 5 of the Fourteenth Amendment ⓘ |
| impact |
recognized a deferential standard to Congress in determining what legislation is appropriate to enforce the Fourteenth Amendment
ⓘ
strengthened federal authority to protect voting rights against restrictive state laws ⓘ |
| joinedByInMajority |
Abe Fortas
ⓘ
Earl Warren ⓘ Hugo L. Black ⓘ Tom C. Clark ⓘ William O. Douglas ⓘ |
| jurisdiction | New York ⓘ |
| legalIssue |
federal power to prohibit state voting qualifications
ⓘ
scope of Congress’s enforcement power under Section 5 of the Fourteenth Amendment ⓘ |
| majorityOpinionBy | William J. Brennan Jr. ⓘ |
| pageInUnitedStatesReports | 641 ⓘ |
| petitioner |
Nicholas deB. Katzenbach
ⓘ
surface form:
Nicholas Katzenbach
|
| petitionerOffice |
United States Attorney General
ⓘ
surface form:
Attorney General of the United States
|
| precedentFor | later cases on Congress’s Section 5 enforcement power ⓘ |
| principleEstablished |
Congress has broad remedial and preventive power to enforce the Fourteenth Amendment
ⓘ
Congress may expand the protection of rights under the Fourteenth Amendment beyond what the Court has recognized, so long as it acts to enforce the Amendment ⓘ |
| protectedGroup | Puerto Rican citizens educated in Spanish ⓘ |
| reinforced | federal authority to prohibit certain state voting restrictions ⓘ |
| relatedConcept | congruence and proportionality (later refined in City of Boerne v. Flores) ⓘ |
| relatedStatute |
Fourteenth Amendment
ⓘ
surface form:
Fourteenth Amendment to the United States Constitution
Section 4(e) of the Voting Rights Act of 1965 ⓘ Section 5 of the Fourteenth Amendment ⓘ Voting Rights Act of 1965 ⓘ |
| respondent | Morgan ⓘ |
| stateLawChallenged | New York English literacy requirement for voter registration ⓘ |
| subjectMatter |
state English literacy requirements for voting
ⓘ
voting rights of Puerto Rican–educated citizens in New York ⓘ |
| volumeInUnitedStatesReports | 384 ⓘ |
| yearDecided | 1966 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Katzenbach v. Morgan Description of subject: Katzenbach v. Morgan is a 1966 U.S. Supreme Court case that upheld Congress’s power under the Fourteenth Amendment to prohibit certain state voting restrictions, reinforcing federal authority to protect voting rights.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Katzenbach v. Morgan, 384 U.S. 641 (1966)
this entity surface form:
Katzenbach