above, alienage is an element of the offense, as to which the defendant benefits from a presumption of innocence and the government bears the burden of proof. See Meza-Soria, 935 F.2d at 168; see also Estelle v. Williams, 425 U.S. 501, 503, 96 S.Ct. 1691, 48 L.Ed.2d 126 (1976) (“The presumption of innocence, although not articulated in the Constitution, is a basic component of a fair trial under our system of criminal justice.”).
Second, there are no “elements” of derivative citizenship that “must be established” by a criminal defendant, as opposed to, for example, an applicant for a U.S. passport, see 22 C.F.R. § 51.43. The jury instruction on alienage described, correctly, two types of “natural born United States citizen[s]”: a person “born in the United States,” and a person who is born to a United States citizen parent “if, before the birth of that person, [the] United States citizen parent of that person was physically present in the United States for ten (10) years, at least five (5) of which were after the citizen parent reached the age of fourteen (14).” Sandoval raised the possibility that he fit the latter definition in an attempt to cast doubt on alienage.
The government could have argued that its proffered evidence overwhelmingly proved alienage, notwithstanding the American citizenship of Sandoval’s father. Or it could have argued that if Sandoval were actually a citizen, he probably would have fought his prior deportation proceedings on that basis. There are many ways a prosecutor can try to convince a jury that it should have no reasonable doubt about an element of an offense, notwithstanding the defense’s attempt to create one. What the government could not do, however, was what it did: suggest that Sandoval bore any responsibility for proving or “establishing]” his citizenship, derivative or otherwise. The prosecutor’s statement was particularly egregious because she said that the jury had “heard” of such a presumption previously. Of course, it had not — not from counsel, not from a witness, and certainly not from the judge when he instructed the jury minutes earlier; the prosecutor simply misstated the record. Her closing statement, and the district court’s rulings sustaining these comments, impermissibly shifted the burden of proof to Sandoval.
B
We must next determine whether these errors require reversal. Some errors “infect the entire trial process, and necessarily render a trial fundamentally unfair,” such that automatic reversal is warranted.
Neder v. United States, 527 U.S. 1, 8, 119 S.Ct. 1827, 144 L.Ed.2d 35 (1999) (internal quotation marks and citations omitted). Most constitutional errors, however, do not rise to that level, and instead do not require reversal if “the court[is] able to declare a belief that it was harmless beyond a reasonable doubt.”
Chapman v. California, 386 U.S. 18, 24, 87 S.Ct. 824, 17 L.Ed.2d 705 (1967);
see also United States v. Walters, 309 F.3d 589, 593 (9th Cir.2002). A third category of errors — non-constitutional ones — do not require reversal if the government can show that “it is more probable than not that the error did not materially affect the verdict.”
United States v. Morales, 108 F.3d 1031, 1040 (9th Cir.1997) (en banc). Sandoval-Gonzalez and the government disagree on whether we should apply the “beyond a reasonable doubt” or “more probable than not” standard for harmless error. We need not decide this issue because the prosecutor’s burden-shifting was prejudicial under either standard.
We have considered related errors in the past; this is not the first time a prosecutor has made a closing statement that