United State v. Morgan’s Empirical Analysis
1954
Citation profile
1,863 federal appellate · 271 district · 429 state decisions
How this case has been cited
Cited by 3,619 later decisions (43 by the Supreme Court) — most recently June 2025 · most notably Sibron v. State of New York Peters (1968), Sanders v. United States (1963)
1,863 federal appellate · 271 district · 429 state decisions — followed in 45 states
Later decisions citing this case, by decade. The current decade is in progress, and our corpus holds fewer opinions from the most recent years, so the latest bars are undercounted — not a real decline.
Appellate journey
reviewedUnited States v. Morgan (from Second Circuit Court of Appeals)
Relationships
Applies 18 U.S.C. § 1702 · 18 U.S.C. § 500 · 28 U.S.C. § 1651 · 28 U.S.C. § 2255 (Antiterrorism and Effective Death Penalty Act of 1996)
Relies on Glasser v. United States · Johnson v. Zerbst · Brown v. Allen · Adams v. United States Ex Rel. McCann
Cited together with United States v. Hayman · Heflin v. United States · Johnson v. Zerbst · Fiswick v. United States · Parker v. Ellis
Most-quoted passages
The sentences later courts lift from this opinion, ranked by how many decisions quote each — the parts of the opinion doing the work. These counts are smaller than the citation total above because most of the 3,619 citing decisions cite the case generally; a passage count includes only decisions quoting that exact language verbatim.
“Although the term has been served, the results of the conviction may persist. Subsequent convictions may carry heavier penalties, civil rights may be affected. As the power to remedy an invalid sentence exists, we think, respondent is entitled to an opportunity to attempt to show that this conviction was invalid.”
74 later decisions quote this exact passage · from the majority“is a step in the criminal case and not like habeas corpus where relief is sought in a separate case and record, the beginning of a separate civil proceeding”
15 later decisions quote this exact passage · from the dissent“The Supreme Court and all courts established by Act of Congress may issue all writs necessary or appropriate in aid of their respective jurisdictions and agreeable to the usages and principles of law.”
11 later decisions quote this exact passage · from the dissent
How this case has been treated — in progress
Whether each later court followed, distinguished, criticized, or overruled this decision. The treatment classification (task #35) runs highest-cited cases first and lights up here as it reaches this one.