Cite as: 582 U. S. ____ (2017) 3
Syllabus
it was required to give the day before. And by so unmooring the rev- ocation of citizenship from its award, the Government opens the door to a world of disquieting consequences—which this Court would need far stronger textual support to believe Congress intended. The stat- ute Congress passed, most naturally read, strips a person of citizenship not when she committed any illegal act during the naturaliza- tion process, but only when that act played some role in her naturalization. Pp. 4–9.
2. When the underlying illegality alleged in a §1425(a) prosecution is a false statement to government officials, a jury must decide whether the false statement so altered the naturalization process as to have influenced an award of citizenship. Because the entire naturalization process is set up to provide little room for subjective pref- erences or personal whims, that inquiry is properly framed in objec- tive terms: To decide whether a defendant acquired citizenship by means of a lie, a jury must evaluate how knowledge of the real facts would have affected a reasonable government official properly applying naturalization law.
If the facts the defendant misrepresented are themselves legally disqualifying for citizenship, the jury can make quick work of that inquiry. In such a case, the defendant’s lie must have played a role in her naturalization. But that is not the only time a jury can find that a defendant’s lies had the requisite bearing on a naturalization decision, because lies can also throw investigators off a trail leading to disqualifying facts. When relying on such an investigation-based theory, the Government must make a two-part showing. Initially, the Government must prove that the misrepresented fact was suffi- ciently relevant to a naturalization criterion that it would have prompted reasonable officials, “seeking only evidence concerning citizenship qualifications,” to undertake further investigation. Kungys, 485 U. S., at 774, n. 9. If that much is true, the inquiry turns to the prospect that such an investigation would have borne disqualifying fruit. The Government need not show definitively that its investiga- tion would have unearthed a disqualifying fact. It need only estab- lish that the investigation “would predictably have disclosed” some legal disqualification. Id., at 774. If that is so, the defendant’s mis- representation contributed to the citizenship award in the way §1425(a) requires. This demanding but still practicable causal standard reflects the real-world attributes of cases premised on what an unhindered investigation would have found.
When the Government can make its two-part showing, the defend- ant may overcome it by establishing that she was qualified for citizenship (even though she misrepresented facts that suggested the opposite). Thus, whatever the Government shows with respect to a