United States v. Santos
The Supreme Court ruled that payments an illegal lottery operator made to his runners, collectors, and winning bettors could not support money-laundering convictions, because the government never showed those payments came from the lottery's profits rather than its overall receipts.
Applying the rule that unclear criminal laws must be read in the defendant's favor, a plurality concluded that 'proceeds' in the money-laundering statute means profits, not gross receipts — a reading meant to stop routine business expenses of a crime from automatically becoming a second, far more serious offense.
How it got here: A jury convicted both men; years later a federal trial court vacated their money-laundering convictions under new appeals-court precedent, and the Seventh Circuit affirmed that ruling, prompting the government's appeal to the Supreme Court.
The Case in Depth
What happened
Efrain Santos ran an illegal lottery in Indiana for over two decades. His runners collected bets and kept a commission, and Santos used the remaining money to pay collectors, including Benedicto Diaz, and to pay winning gamblers. Based on these payments, Santos and Diaz were convicted not only of running an illegal gambling business but also of federal money laundering, a crime carrying much harsher penalties.
The question before the Court
When the federal money-laundering law bans dealing in the "proceeds" of crime, does that word mean all the money a criminal operation takes in, or only what's left after paying its expenses?
The Court's answer
Yes — the Court affirmed that Santos and Diaz's money-laundering convictions could not stand, because a controlling majority read "proceeds" in the money-laundering statute to mean profits rather than gross receipts, at least on these facts. A four-justice plurality concluded the word is genuinely ambiguous and that the rule of lenity, which resolves unclear criminal laws in the defendant's favor, required the profits reading across the board.
Justice Stevens supplied the fifth vote on narrower grounds: he would read "proceeds" to mean profits specifically where, as with this standalone illegal lottery, there is no legislative history suggesting Congress meant something broader — leaving open the possibility that "proceeds" could still mean gross receipts for other crimes like drug trafficking. Because his opinion rests on the narrowest ground, it controls future cases.
Curious how the Court got there? See the step-by-step legal reasoning →
Why it matters
Prosecutors can no longer automatically add a 20-year money-laundering charge on top of a lesser crime simply because the defendant paid ordinary operating costs — like employee wages or payouts to customers — using money the underlying crime brought in. That closes off a tactic prosecutors used to pressure plea deals and stack sentences in gambling, drug, and other cases involving cash-generating criminal businesses.
What changes now
The judgment of the Seventh Circuit is affirmed, so Santos's and Diaz's money-laundering convictions remain vacated, though their separate convictions for illegal gambling stand. Because no single opinion commanded five votes on a single rationale, lower courts must follow the narrowest position — Justice Stevens's — that 'proceeds' means profits at least where legislative history does not clearly point the other way, leaving room for future disputes over how the ruling applies to other crimes.
What this does not decide
The Court did not adopt a single, universal rule for every crime covered by the money-laundering statute. Justice Stevens's controlling concurrence left open that 'proceeds' might still mean gross receipts for crimes like drug trafficking or organized-crime rackets where legislative history points that way, so the profits-only reading is not guaranteed to apply beyond cases like this one.
Concurrences and dissents
Concurrence in part — Justice Thomas
Justice Thomas joined Justice Scalia's opinion in full except for Part IV, which responded to Justice Stevens's view that 'proceeds' could mean different things for different underlying crimes. Thomas did not join that rebuttal, though he agreed with the plurality's overall profits-based interpretation and the judgment.
Concurrence — Justice Stevens
Justice Stevens agreed that the gambling revenue used to pay basic operating expenses was not 'proceeds,' but he argued judges may read 'proceeds' to mean profits for some underlying crimes and receipts for others, depending on legislative history. He found no history addressing standalone gambling operations, so the rule of lenity favored the profits reading here, but he would not extend that reading to crimes like drug trafficking where history suggests Congress meant gross receipts.
Dissent — Justice Breyer
Justice Breyer joined Justice Alito's dissent but wrote separately to say the 'merger problem' should be solved elsewhere, not by redefining 'proceeds.' He suggested courts could require the money-laundering offense and the underlying crime to be legally distinct, or that the Sentencing Commission could fix unfair sentencing disparities directly.
Dissent — Justice Alito
Justice Alito argued that 'proceeds' plainly means the total amount brought in, pointing to how virtually every other money-laundering law, model act, and international treaty defines the term to include gross receipts. He warned that requiring proof of net profits would create impossible accounting and proof burdens in real prosecutions, especially against drug cartels and organized crime, and would let hired money launderers escape liability entirely.
How the Court got there
The legal reasoning, step by step
- The Court examined the undefined term 'proceeds' in the money-laundering statute and found it genuinely ambiguous, since ordinary dictionaries and other federal criminal laws use the word to mean both 'receipts' (everything brought in) and 'profits' (what remains after costs).
- Because the statutory text supported both readings equally, the Court invoked the rule of lenity — the principle that when a criminal law is truly unclear, courts must resolve the ambiguity in the defendant's favor rather than the government's.
- The plurality identified a 'merger problem' with reading 'proceeds' as gross receipts: nearly any payment a criminal makes to keep an illegal business running, such as wages or payouts to associates, would also count as a separate, harsher money-laundering offense on top of the underlying crime.
- The plurality reasoned that Congress could not have intended ordinary, foreseeable operating expenses of a crime to automatically trigger a second and far more severe penalty than the one already set for that crime.
- Applying the 'profits' reading, the Court concluded that payments to lottery runners, collectors, and winning bettors were the routine costs of running the lottery, not identifiable uses of profit, so they could not support a money-laundering conviction.
Doctrinal impact
Cases affected by this decision
Reaffirms Clark v. Martinez (543 U. S. 371)
The Court relied on this case to insist a single undefined word must keep the same meaning across a statute's applications.