Ex parte Siebold’s Empirical Analysis
100 U.S. 371 · 1879
Citation profile
201 federal appellate · 94 district · 256 state decisions
How this case has been cited
Cited by 964 later decisions (159 by the Supreme Court) — most recently June 2026 · most notably Ex Parte: Edward T Young (1908), Baker v. Carr (1962)
201 federal appellate · 94 district · 256 state decisions — followed in 39 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.
Relationships
Relies on United States v. Cruikshank · Ex parte Lange · Aaron Cooley v. The Board of Wardens of the Port of Philadelphia to the Use of the Society for the Relief of Distressed Pilots Their Widows and Children Same · Ex parte Parks
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 964 citing decisions cite the case generally; a passage count includes only decisions quoting that exact language verbatim.
“* * * While the state will retain the power of enforcing such of its own regulations as are not superseded by those adopted by Congress, it cannot be disputed that if Congress has power to make regulations it must have the power to enforce them, not only by punishing the delinquency of officers appointed by the United States, but by restraining and punishing those who attempt to interfere with them in the performance of their duties; * * *”
31 later decisions quote this exact passage · from the majority“An unconstitutional law is void, and is as no law.”
25 later decisions quote this exact passage · from the majority““This power to enforce its laws and to execute its functions in all places does .not derogate from.the power of the state to execute its laws at the same time and in the same places. The one does not exclude the other, except where -both cannot be executed at the same time. In that case, the words of the Constitution itself show which is to yield: ‘This Constitution, and all laws which shall be made in pursuance thereof, * * ' * shall be the supreme law of the land.’ ””
10 later decisions quote this exact passage · from the majority
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.