In the late nineteenth century, the United States and China entered into a series of treaties, including the Burlingame Treaty of 1868 and the Angell Treaty of 1880. The 1880 treaty permitted the United States to 'regulate, limit, or suspend' the immigration of Chinese laborers in light of domestic concerns. Acting pursuant to these authorities, Congress enacted the Chinese Exclusion Act of 1882, which suspended the immigration of Chinese laborers for a defined period and created a certificate system. In 1884, Congress refined the system to allow Chinese laborers lawfully present in the United States who departed temporarily to obtain reentry certificates confirming their right to return. Chae Chan Ping, a Chinese laborer who had lived in the United States for years, departed for China in 1887 after obtaining the required reentry certificate under the 1884 statute. While he was abroad, Congress enacted the Scott Act of 1888, which categorically barred the return of Chinese laborers and expressly invalidated previously issued reentry certificates. When Chae Chan Ping attempted to reenter the country shortly after the Act's passage, officials at the Port of San Francisco denied him landing despite his facially valid certificate. He was detained and petitioned for a writ of habeas corpus in federal court, arguing that the Scott Act unconstitutionally abrogated his vested right to return, violated the treaties with China, and exceeded congressional power. The lower court denied relief, and the case was appealed to the U.S. Supreme Court.
Whether Congress may, consistent with the Constitution and applicable treaties, bar the reentry of Chinese laborers and invalidate previously issued reentry certificates by enacting the Scott Act of 1888, thereby preventing the holder of such a certificate from returning to the United States.
The political branches possess plenary authority to exclude noncitizens as an incident of national sovereignty and self-preservation, and the judiciary will not second-guess such determinations. For domestic law purposes, treaties and statutes are of equal dignity; where they conflict, the later-in-time rule applies, allowing a subsequent statute to supersede prior treaty obligations. Government-issued permissions to enter or reenter are subject to subsequent legislative revocation and do not create vested rights immune from later congressional action.
Yes. The Supreme Court upheld the Scott Act, holding that Congress had the constitutional authority to exclude Chinese laborers and to invalidate previously issued reentry certificates, even if this action conflicted with earlier treaties with China. Consequently, Chae Chan Ping had no enforceable right to reenter the United States.
The Court grounded its decision in the inherent powers of a sovereign nation to control its borders and determine which noncitizens may enter. It emphasized that the exclusion of foreigners—especially when justified by perceived public safety, foreign affairs, and self-preservation concerns—is a political function entrusted to the national government, not subject to judicial second-guessing. The opinion repeatedly invoked the idea that decisions about who may come to the United States implicate national security and international relations, domains in which the judiciary traditionally defers to the political branches. On the claimed conflict with the Burlingame and Angell Treaties, the Court applied the established principle that treaties and federal statutes are of equal rank in domestic law; thus, a later statute prevails over an earlier treaty to the extent of any inconsistency (the last-in-time rule). Even if the Scott Act represented a change in policy and a departure from prior treaty commitments, it was fully effective domestically. The Court acknowledged that international consequences might follow from breaching treaty obligations, but those consequences are for the political branches to manage, not the courts. Addressing the argument that a reentry certificate created a vested right, the Court characterized the certificate as a revocable license contingent on the continuing will of Congress. Because the power to exclude is inherent and plenary, Congress could withdraw permission to enter or reenter at any time; individuals holding certificates therefore possessed no immutable legal entitlement against later exclusionary legislation. The Court rejected constitutional objections, reasoning that an alien outside the territorial United States seeking initial entry (or reentry after departure) stands differently from persons within the country and is subject to exclusion on terms set by the political branches. Consequently, the Scott Act's invalidation of previously issued certificates and categorical bar on the return of Chinese laborers were constitutionally sound exercises of national power.
Chae Chan Ping is the foundational case for the immigration plenary power doctrine, under which the judiciary affords extraordinary deference to the political branches on admission and exclusion decisions. It also solidifies the last-in-time rule in the immigration context, confirming that later federal statutes control domestically over prior treaties. The case has had enduring influence, paving the way for decisions like Nishimura Ekiu v. United States (exclusion decisions as conclusive), Fong Yue Ting v. United States (extending plenary logic to deportation), and later deference cases including Kleindienst v. Mandel and Trump v. Hawaii. At the same time, the opinion is a cautionary exemplar of how sweeping deference can entrench discriminatory policies. It is routinely criticized for its racialized rhetoric and for enabling exclusion based on national origin. Modern law students should understand both its doctrinal legacy and the subsequent development of constraints—such as recognition of due process protections for persons within the country (e.g., Yamataya v. Fisher) and statutory or constitutional limits on detention (e.g., Zadvydas v. Davis)—that partially temper, but do not eliminate, the core plenary power framework.
Chae Chan Ping v. United States established two pillars of U.S. immigration law: sweeping deference to the political branches in controlling admission at the border, and the domestic primacy of later federal statutes over conflicting treaties. By upholding the Scott Act's categorical exclusion of Chinese laborers and the revocation of previously issued reentry certificates, the Court cemented a doctrine that continues to shape judicial review of immigration decisions.