Downes v. Bidwell
The Supreme Court upheld a special tariff Congress placed on goods shipped between Puerto Rico and the U.S. mainland after Spain ceded the island following the Spanish-American War, ruling that Puerto Rico had not automatically become part of the United States for constitutional tax purposes merely by being annexed.
In a fractured 5-4 decision with no majority opinion, the Court's separate opinions launched the doctrine of 'territorial incorporation,' holding that Congress could govern newly acquired territories under lesser constitutional constraints until Congress itself chose to make them a full part of the country — a framework that shaped U.S. rule over Puerto Rico, the Philippines, and other territories for generations.
“We are therefore of opinion that the Island of Porto Rico is a territory appurtenant and belonging to the United States, but not a part of the United States within the revenue clauses of the Constitution”
Brown's core conclusion that Puerto Rico was not part of the United States for tax purposes.
How it got here: Downes sued the New York customs collector in federal circuit court to recover duties paid under the Foraker Act; the circuit court ruled for the collector, and Downes brought his case directly to the Supreme Court by writ of error.
The Case in Depth
What happened
After the Spanish-American War, Spain ceded Puerto Rico to the United States. Congress passed the Foraker Act, setting up a civil government for the island and imposing a special 15% tariff on goods shipped between Puerto Rico and U.S. ports, rather than treating that trade as fully domestic. A New York importer, Samuel Downes, paid duties under protest on fruit shipped from Puerto Rico and sued the customs collector, George Bidwell, to get the money back.
The question before the Court
After the United States took Puerto Rico from Spain, did the Constitution automatically require Congress to tax trade with the island exactly like trade between American states?
The Court's answer
No -- the Court ruled that Puerto Rico did not automatically become part of the United States for purposes of the Constitution's tax-uniformity rule simply because Spain ceded it to the United States. Justice Brown's opinion announcing the judgment, and a separate concurrence by Justice White (joined by two other justices), agreed that Congress could treat trade with newly acquired territories differently from trade among the states until Congress itself chose to make a territory a full, "incorporated" part of the country.
Because no single opinion gained five votes for the same reasoning, the ruling was fractured, but five justices agreed on the outcome: Puerto Rico was "a territory appurtenant and belonging to the United States, but not a part of the United States" under the Constitution's revenue clauses, so the Foraker Act's special tariff was constitutional and the importer could not recover the duties he had paid.
Curious how the Court got there? See the step-by-step legal reasoning →
Why it matters
The ruling gave Congress broad power to govern territories gained through war or treaty without automatically extending full constitutional protections or uniform tax treatment to their residents. It shaped over a century of U.S. policy toward Puerto Rico, the Philippines, Guam, and other territories, and its 'incorporation' framework is still cited today in debates over Puerto Rico's political status and the rights of people living in U.S. territories.
What changes now
This was a final decision on the merits, and the lower court's ruling against the importer stood, so Downes could not recover the duties he had paid. More broadly, the fractured ruling launched the 'Insular Cases' line of decisions that Congress and later courts relied on to govern Puerto Rico, the Philippines, and other territories without automatically extending full constitutional protections -- a framework that continues to shape Puerto Rico's legal status today.
What this does not decide
No single opinion won five votes for the same reasoning -- Brown, White, and Gray each reasoned differently, though five justices agreed on the bottom line that Puerto Rico had not been 'incorporated.' The Court expressly declined to decide which specific rights, such as jury trial or free speech, apply in territories that have not been incorporated.
Concurrences and dissents
Concurrence — Justice White
White agreed with the outcome but on different reasoning, introducing the 'territorial incorporation' doctrine: every provision of the Constitution applies once conditions trigger it, but Congress can withhold full incorporation of a territory, meaning provisions like tax uniformity do not yet apply. He concluded the treaty and the Foraker Act both showed Congress had not incorporated Puerto Rico.
Concurrence — Justice Gray
Gray agreed with the result, emphasizing that conquered territory is first governed by military authority and that civil government can only take effect gradually through action of the treaty-making power or Congress. He stressed that Congress may set up a temporary government not bound by every constitutional restriction during this transition.
Dissent — Justice Fuller
Fuller argued that once Congress created a full civil government for Puerto Rico under the Foraker Act, the island became part of the United States for constitutional purposes, so the tax-uniformity requirement applied and the special tariff was unconstitutional. He rejected the idea that Congress could hold territory in an intermediate, undefined status indefinitely.
Dissent — Justice Harlan
“The idea that this country may acquire territories anywhere upon the earth, by conquest or treaty, and hold them as mere colonies or provinces — the people inhabiting them to enjoy only such rights as Congress chooses to accord to them — is wholly inconsistent with the spirit and genius as well as with the words of the Constitution.”Harlan's warning that the ruling could let Congress govern territories as colonies outside constitutional limits.
Harlan joined Fuller's dissent but wrote separately to warn that allowing Congress to govern territories 'outside the Constitution' would create a dangerous two-tiered system of government, contrary to the idea that the Constitution is the supreme law everywhere the United States exercises authority. He argued Puerto Rico became domestic territory once ceded and could not be foreign for tariff purposes yet outside constitutional protection for others.
How the Court got there
The legal reasoning, step by step
- Justice Brown's opinion announcing the judgment reasoned that the Constitution's tax-uniformity and revenue clauses were written by and for the states that ratified the Constitution, and that newly acquired territories do not automatically count as 'the United States' for those clauses.
- Justice White's concurrence, joined by two other justices, introduced what became known as the territorial incorporation doctrine: some fundamental rights apply wherever the government acts, but other provisions -- like the tax-uniformity requirement -- apply only in territories Congress has expressly 'incorporated' into the United States as a permanent part of the country.
- White pointed to the treaty with Spain, which left 'the civil rights and political status' of Puerto Rico's people to be decided by Congress, as proof that neither the treaty nor the Foraker Act intended to fold the island immediately into the United States.
- Justice Gray's separate concurrence added that newly acquired territory is at first governed by military authority, and that Congress may set up a temporary civcivil government not bound by every constitutional restriction during this transition period.
- Because five justices agreed that Puerto Rico had not been incorporated into the United States, the constitutional requirement that duties be 'uniform throughout the United States' did not stop Congress from taxing trade with the island differently than trade among the states.
Doctrinal impact
Cases affected by this decision
Limits Loughborough v. Blake (5 Wheat. 317)
The Court said Marshall's broad statements there about territories were unnecessary dicta, confining the ruling to the District of Columbia only.
Distinguishes Dred Scott v. Sandford (19 How. 393)
The Court said the case actually decided there was different from the tariff question here and did not control the outcome.
Reaffirms American Ins. Co. v. Canter (1 Pet. 511)
The Court relied on this case as continuing authority that Congress can govern territories without full constitutional application.