Shular v. United States
The Supreme Court unanimously ruled that federal courts do not need to construct a generic drug offense when deciding whether a prior state drug conviction triggers a mandatory 15-year minimum sentence under the Armed Career Criminal Act.
The decision settles a split among federal appeals courts, establishing that courts must only ask whether the prior state conviction involved the conduct described in the federal statute — not whether it matches a standardized offense definition.
How it got here: The federal district court applied the ACCA mandatory minimum; the Eleventh Circuit affirmed; the Supreme Court agreed to hear the case to resolve a split among federal appeals courts.
The Case in Depth
What happened
Eddie Lee Shular, a Florida man, pleaded guilty in federal court to possessing a firearm as a convicted felon. He had six prior Florida cocaine-related convictions. Under the Armed Career Criminal Act, a gun felon with at least three prior "serious drug offense" convictions must receive a 15-year mandatory minimum sentence. Shular argued his Florida convictions should not count because Florida's drug law, unlike a generic drug offense, does not require the defendant to know the substance was illegal.
The question before the Court
Must courts compare a defendant's prior state drug convictions to a standardized "generic" drug offense before applying a federal law that adds a 15-year mandatory minimum sentence for repeat offenders?
The Court's answer
No — courts do not need to compare a defendant's prior state drug convictions to a generic, standardized offense before applying the Armed Career Criminal Act's 15-year mandatory minimum. The statute's "serious drug offense" definition asks only whether the prior state conviction involved the conduct listed in the federal law — manufacturing, distributing, or possessing controlled substances with intent to distribute — not whether the state crime matches some common-law-style generic offense.
The Court reached this conclusion by closely reading the statute's words. The drug offense provision uses the word "involving," which points to conduct. A neighboring provision that does require a generic-offense comparison uses the word "is" followed by named crimes like "burglary" and "arson." Because Congress chose different language for drug offenses, and because drug crime terminology varies widely across states, the Court concluded Congress meant to define qualifying offenses by the conduct they entail, not by matching them to a generic definition.
Curious how the Court got there? See the step-by-step legal reasoning →
Why it matters
People with prior state drug convictions who are later caught with a firearm may face a 15-year mandatory minimum even if their state conviction lacked elements — like knowledge that a substance was illegal — that a "generic" version of the offense would require. The ruling resolves conflicting approaches that had led to different sentencing outcomes for similar defendants in different federal circuits.
What changes now
Shular's 15-year sentence stands. Going forward, all federal courts must apply a uniform rule: when deciding whether a prior state conviction is a "serious drug offense" under the Armed Career Criminal Act, courts ask only whether the state offense involved the conduct listed in the statute — not whether it matches a generic offense. The separate question of whether the statute independently requires a defendant's knowledge of a substance's illicit nature was not decided and remains open.
What this does not decide
The Court explicitly declined to address Shular's backup argument: that even without a generic-offense comparison, § 924(e)(2)(A)(ii) independently requires proof that the defendant knew the substance was illegal. That question was not part of the issue the Court agreed to hear and remains unresolved.
Concurrences and dissents
Concurrence — Justice Kavanaugh
Justice Kavanaugh joined the majority opinion in full but wrote separately to elaborate on when the rule of lenity applies. He explained that two conditions must both be met: a court must first exhaust all traditional tools of statutory interpretation, and even after doing so, the statute must remain 'grievously' ambiguous — meaning the court can do no better than guess at Congress's intent. Mere ambiguity is not enough; the ambiguity must be severe.
How the Court got there
The legal reasoning, step by step
- Under the Armed Career Criminal Act, courts use the 'categorical approach' — established in Taylor v. United States (1990) — to decide whether a prior conviction qualifies as a 'serious drug offense.' This means looking only at the statutory elements of the prior offense, not the actual facts of what the defendant did or the label the state gave the crime.
- Two versions of the categorical approach exist. The first requires courts to identify the elements of a 'generic' version of a crime as commonly understood, then compare the prior conviction to that generic definition — used when a federal statute names an offense like 'burglary.' The second asks only whether the prior conviction's elements satisfy some other described criterion, such as involving fraud or certain conduct.
- The Court examined the text of § 924(e)(2)(A)(ii), which covers state offenses 'involving manufacturing, distributing, or possessing with intent to manufacture or distribute, a controlled substance.' The word 'involving' signals conduct, not named offenses. Contrast this with the neighboring violent felony provision, which uses 'is burglary, arson, or extortion' — language that plainly names offenses and requires a generic-offense comparison.
- The drug offense terms in the statute — 'manufacturing,' 'distributing,' 'possessing with intent' — are not universal offense names the way 'burglary' is. States use widely varying terminology for core drug crimes ('trafficking,' 'selling,' 'delivering,' and so on). Congress logically identified qualifying state offenses by the conduct they involve, not by offense names that states do not share.
- Shular argued that without a generic-offense approach, defendants could face enhanced sentences based on outlier state laws — like Florida's, which does not make knowledge of a substance's illicit nature a formal element. The Court disagreed: Florida still lets defendants raise lack of knowledge as an affirmative defense, and juries must find knowledge beyond a reasonable doubt when that defense is raised. Congress chose consistency based on conduct, not on generic-offense elements.
- The rule of lenity — which calls for reading criminal laws in a defendant's favor when genuinely ambiguous — did not apply because the statute's text and context left no real ambiguity to resolve. After exhausting standard interpretive tools, the Court concluded that the statute clearly refers to conduct, leaving nothing for the rule of lenity to do.
Doctrinal impact
Cases affected by this decision
Reaffirms Taylor v. United States (495 U.S. 575)
Reaffirmed as the source of the categorical approach courts use to evaluate prior convictions under ACCA.
Reaffirms Kawashima v. Holder (565 U.S. 478)
Reaffirmed as the model for conduct-based categorical analysis, applied here to drug offenses.