The Chinese Exclusion Case
The Supreme Court upheld a federal law that barred Chinese laborers from returning to the United States, even those who held certificates issued under earlier laws promising they could come back after a trip abroad.
The Court ruled that Congress's power to exclude foreigners is an inherent part of national sovereignty, and that a later act of Congress can override a treaty's promises, leaving affected individuals with no legal recourse in American courts.
“Whatever license, therefore, Chinese laborers may have obtained, previous to the act of October 1, 1888, to return to the United States after their departure, is held at the will of the government, revocable at any time, at its pleasure.”
The Court explains that prior permission to re-enter was a revocable privilege, not a vested right.
How it got here: A federal circuit court in California ruled against Chae Chan Ping, upholding the 1888 law; he appealed directly to the Supreme Court.
The Case in Depth
What happened
Chae Chan Ping, a Chinese laborer who had lived in San Francisco for years, left for a visit to China holding a certificate issued under an 1882 law (as amended in 1884) guaranteeing his right to return. While he was traveling back, Congress passed a new law on October 1, 1888, that voided all such certificates and barred Chinese laborers from re-entering, so he was refused entry when his ship arrived in San Francisco.
The question before the Court
Could Congress bar a Chinese laborer from re-entering the United States even though he held a government certificate promising he could come back?
The Court's answer
No — the Court ruled that Congress could bar Chae Chan Ping from re-entering the country despite his certificate. It held that a treaty and a federal statute carry equal legal weight, so a later law can lawfully override an earlier treaty's promises, and whether that was fair to China was a political question, not one for judges to resolve.
The Court also held that the power to exclude foreigners is an inherent part of national sovereignty that Congress may exercise whenever it judges the country's safety requires it. Since Chae Chan Ping was an alien with no vested property right, his previous permission to return was merely a revocable privilege, and Congress was free to cancel it.
Curious how the Court got there? See the step-by-step legal reasoning →
Why it matters
The ruling gave Congress essentially unchecked authority to control who may enter or stay in the country, regardless of treaty commitments or prior promises to individuals. It became the legal foundation for decades of restrictive immigration laws and established that courts generally will not second-guess Congress's immigration judgments.
What changes now
The ruling was final on the merits and left Chae Chan Ping permanently excluded from the country. It set a lasting precedent — often called the plenary power doctrine — that Congress's immigration decisions are largely beyond judicial review, a principle that shaped U.S. immigration law for the following century, including further Chinese exclusion statutes.
What this does not decide
The Court did not decide whether the United States was right to break its promises to China; it said that question belonged to the political branches, not the courts. It also did not address the 1798 Alien Act's constitutionality, noting that law involved different provisions never tested in court.
How the Court got there
The legal reasoning, step by step
- The Court began by treating treaties and acts of Congress as equally binding forms of law, meaning neither automatically outranks the other; when they conflict, whichever came later in time controls, a rule the Court had already adopted in the Head Money Cases and Whitney v. Robertson.
- Because the 1888 law was passed after the treaties promising Chinese laborers a right of return, the Court held the law controlled even though it broke the government's treaty commitments, and whether the U.S. was right to break its word to China was a political question for the President and Congress, not the courts.
- The Court then asked whether Congress had the underlying power to exclude foreign laborers at all, and concluded that the power to exclude aliens is an inherent attribute of national sovereignty, arising from the nation's independence rather than from any specific clause of the Constitution.
- Applying that principle, the Court reasoned that if the government believes the presence of a group of foreigners threatens the country's peace and safety, its judgment about when and how to act on that danger is conclusive and not subject to review by judges.
- Because Chae Chan Ping was an alien with no vested property right, any permission he had previously received to re-enter the country was a revocable privilege rather than a binding legal right, so Congress could cancel it at any time.
- The Court distinguished this case from Chew Heong v. United States, where it had required certificates for laborers who left before the 1882 Act, noting that here Congress had expressly and directly revoked all such certificates going forward.
Doctrinal impact
Cases affected by this decision
Reaffirms The Head Money Cases (112 U.S. 580)
Reaffirms that treaties are subject to modification or repeal by later acts of Congress.
Reaffirms Whitney v. Robertson (124 U.S. 190)
Reaffirms that a later federal statute overrides a conflicting earlier treaty provision.
Distinguishes Chew Heong v. United States (112 U.S. 536)
Distinguished because that case involved laborers who left before certificates were required, unlike this case.