Shular v. United States
The Supreme Court unanimously ruled that the federal law imposing a mandatory 15-year minimum sentence for repeat drug offenders applies whenever a prior state conviction involves the conduct of making, distributing, or possessing drugs with intent to distribute — courts do not need to compare the state crime against a hypothetical generic federal standard.
The decision resolves a split among federal appeals courts and means defendants with prior convictions under state drug laws — even ones that don't require proving knowledge that a substance was illegal — can still face the tougher mandatory federal sentence.
How it got here: A federal district court sentenced Shular to 15 years; 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 pleaded guilty to possessing a firearm as a convicted felon. He had six prior cocaine-related convictions under Florida law — a statute that makes drug dealing a crime without requiring prosecutors to prove the defendant knew the substance was illegal. The government sought a mandatory 15-year minimum sentence under the Armed Career Criminal Act, which applies to defendants with at least three prior "serious drug offenses." Shular challenged whether Florida's drug law counted under that definition.
The question before the Court
Does a federal law that adds a mandatory 15-year prison sentence for repeat drug offenders apply when a prior state drug conviction doesn't require proving the defendant knew the substance was illegal?
The Court's answer
No — the law does not require courts to compare a prior state drug conviction against a hypothetical generic federal standard before applying the mandatory 15-year sentence. The Armed Career Criminal Act defines "serious drug offense" by describing certain conduct — making, distributing, or possessing drugs with intent to distribute — rather than naming specific generic crimes. Courts therefore only need to ask whether the state offense's elements necessarily involve that conduct, without first constructing what a generic version of the drug crime would look like nationwide.
Because Florida's law covers exactly that conduct, Shular's six prior Florida convictions qualified as "serious drug offenses," triggering the mandatory minimum. The Court also rejected Shular's argument that the rule of lenity — a principle favoring defendants when a criminal law is ambiguous — applied here, finding the statute's meaning clear after standard tools of interpretation were applied.
Curious how the Court got there? See the step-by-step legal reasoning →
Why it matters
People convicted of illegal gun possession who have three or more prior state drug convictions can face the federal mandatory 15-year minimum even if their state didn't require prosecutors to prove they knew the substance was illegal. Federal courts across the country now follow one uniform method: they simply check whether the state offense required the covered drug conduct, with no need to define a generic federal standard.
What changes now
Shular's 15-year mandatory minimum sentence stands. Going forward, federal courts nationwide must use the same method when deciding whether prior state drug convictions trigger ACCA's sentencing enhancement: they check whether the state offense necessarily involved the covered drug conduct, without first defining a generic version of the crime. The longstanding circuit split on this question is now resolved.
What this does not decide
The Court did not decide whether ACCA's "serious drug offense" definition independently requires proof that a defendant knew the substance was illegal. Shular raised that argument, but the Court declined to consider it — finding it outside the question the Court agreed to answer and noting that Shular had abandoned the argument at an earlier stage.
Concurrences and dissents
Concurrence — Justice Kavanaugh
Justice Kavanaugh joined the majority in full but wrote separately to elaborate on the rule of lenity. He explained that the rule applies only under two conditions: first, a court must exhaust all traditional tools of statutory interpretation before resorting to it; second, the remaining ambiguity must be 'grievous' — meaning the court can do no better than guess at Congress's intent. Mere ambiguity is not enough. Because neither condition was met here, the rule of lenity had no role to play.
How the Court got there
The legal reasoning, step by step
- The Armed Career Criminal Act (ACCA) requires courts to decide whether a defendant's prior state convictions count as 'serious drug offenses' triggering a mandatory 15-year sentence. Courts use what's called the 'categorical approach' — they look only at the elements the prior offense legally required, not at what the defendant actually did or what the state called the crime.
- Two types of categorical analysis exist. Some statutes require courts to first define a 'generic' version of the offense — the elements as commonly understood across states — and then compare the state conviction against that template. Others require only that the court check whether the state offense's elements involved certain conduct, with no generic template needed.
- ACCA defines 'serious drug offense' as a state offense 'involving manufacturing, distributing, or possessing with intent to manufacture or distribute, a controlled substance.' The Court's task was to determine which type of analysis this language called for.
- Two textual clues pointed to the conduct-comparison approach, not the generic-offense approach. First, drug terms like 'manufacturing' and 'distributing' do not unambiguously name offenses the way 'burglary' or 'arson' do — states use widely varying words for core drug crimes. Second, the statute uses the word 'involving,' which naturally describes conduct; if Congress had meant to name specific offenses, it would have used 'is,' just as it did in the nearby provision covering crimes that 'is burglary, arson, or extortion.'
- Shular warned that this reading would sweep in defendants convicted under unusual state laws — Florida's, for example, doesn't require prosecutors to prove the defendant knew the substance was illegal as part of the offense. The Court found Florida's approach less unusual than claimed: a defendant can raise lack of knowledge as a defense, and the jury must then find knowledge beyond a reasonable doubt.
- Finally, the rule of lenity — a principle that genuinely ambiguous criminal laws should be read in the defendant's favor — did not apply. That rule kicks in only after all standard tools of statutory interpretation are exhausted and genuine ambiguity remains. The Court found the statute clear: it covers conduct, not generic offenses, leaving no ambiguity for the rule of lenity to resolve.