United States v. Murphy ( 2019 )


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  • 17‐3056‐cr
    United States v. Murphy
    UNITED STATES COURT OF APPEALS
    FOR THE SECOND CIRCUIT
    August Term 2018
    (Argued: May 3, 2019                Decided: November 4, 2019)
    Docket No. 17‐3056‐cr
    UNITED STATES OF AMERICA,
    Appellee,
    v.
    NICHOLAS MURPHY,
    Defendant‐Appellant.
    ON APPEAL FROM THE UNITED STATES DISTRICT COURT
    FOR THE DISTRICT OF CONNECTICUT
    Before:
    KEARSE, WESLEY, and CHIN, Circuit Judges.
    Appeal from a judgment entered in the United States District Court
    for the District of Connecticut (Bryant, J.) convicting defendant, following a
    guilty plea, of traveling interstate for the purpose of engaging in ʺillicit sexual
    conductʺ with a minor, in violation of 
    18 U.S.C. § 2423
    (b). The government
    charged that the intended ʺillicit sexual conductʺ was the sexual abuse of an
    individual at least 12 years old but not yet 16 years old, who was at least four
    years younger than the defendant. See 
    18 U.S.C. § 2243
    (a). As the parties
    stipulated, however, the victim told the defendant she was 16 years old and the
    defendant told detectives he believed her to be 16 years old. On appeal, the
    defendant contends that the district court committed plain error in accepting his
    guilty plea.
    VACATED and REMANDED.
    SARAH P. KARWAN, Assistant United States Attorney
    (Marc H. Silverman, Assistant United States
    Attorney, on the brief), for John H. Durham, United
    States Attorney for the District of Connecticut,
    New Haven, Connecticut, for Appellee.
    MATTHEW BRISSENDEN, Matthew W. Brissenden, P.C.,
    Garden City, New York, for Defendant‐Appellant.
    ___________
    CHIN, Circuit Judge:
    In this case, the government charged defendant‐appellant Nicholas
    Murphy with traveling in interstate commerce for the purpose of engaging in
    ʺillicit sexual conductʺ in violation of 
    18 U.S.C. § 2423
    (b). The government
    2
    alleged that the intended ʺillicit sexual conductʺ was the sexual abuse of an
    individual at least 12 years old but not yet 16 years old, who was at least four
    years younger than the defendant. See 
    18 U.S.C. § 2243
    (a). Thus, Murphy was
    charged with (a) traveling in interstate commerce (b) for the purpose of (1)
    knowingly engaging in a sexual act with (2) a minor not younger than 12, not yet
    16, and at least four years his junior.
    Murphy pled guilty pursuant to a plea agreement that stipulated
    that when he was 25 years old, he traveled from Rhode Island to Connecticut for
    the purpose of having sexual intercourse with a young girl he told detectives he
    believed to be 16 years old when in fact she was younger than 16 but older than
    13. The government, defense counsel, Murphy, and, ultimately, the district court
    proceeded on the assumption that § 2423(b), when charged with § 2243(a) as the
    intended illicit sexual conduct, could be violated without knowledge of the
    victimʹs age.
    We hold that 
    18 U.S.C. § 2423
    (b) is not a strict liability crime. As
    charged here, the statute criminalizes interstate travel ʺfor the purpose ofʺ ‐‐ that
    is, with the intent of ‐‐ engaging in a sexual act with someone aged at least 12, not
    yet 16, and at least four years the defendantʹs junior. Murphy, however,
    3
    apparently believed he was going to have sexual intercourse with a 16‐year‐old.
    Hence, while he might very well have been guilty of a different crime, on this
    record, he was not guilty of violating § 2423(b). Accordingly, we vacate
    Murphyʹs conviction and remand for further proceedings consistent with this
    opinion.
    BACKGROUND
    A.    Statutory Background
    The indictment charges that Murphy traveled in interstate
    commerce for the purpose of engaging in illicit sexual conduct with another
    person in violation of 
    18 U.S.C. § 2423
    (b). Section 2423 provides, in part:
    (b) Travel with intent to engage in illicit sexual conduct. ‐‐
    A person who travels in interstate commerce . . . for the
    purpose of engaging in any illicit sexual conduct with
    another person shall be fined under this title or imprisoned
    not more than 30 years, or both.
    ....
    (f) Definition. ‐‐ As used in this section, the term ʺillicit
    sexual conductʺ means
    (1) a sexual act . . . with a person under 18 years of age
    that would be in violation of Chapter 109A if the sexual act
    occurred in the special maritime and territorial jurisdiction
    of the United States . . . .
    4
    
    18 U.S.C. § 2423
    . 1 Section 2423(b) thus criminalizes travel for certain illegal
    purposes, namely, for the purpose of committing a crime listed in Chapter 109A.
    According to the indictment, the ʺillicit sexual conductʺ that Murphy intended to
    engage in was the ʺsexual abuse of a minorʺ as defined in 
    18 U.S.C. § 2243
    (a).
    Section 2243, entitled ʺ[s]exual abuse of a minor or wardʺ and
    included in Chapter 109A, provides:
    (a) Of a Minor. ‐‐ Whoever, in the special maritime and
    territorial jurisdiction of the United States or in a Federal
    prison, or in any prison, institution, or facility in which
    persons are held in custody by direction of or pursuant to a
    contract or agreement with the head of any Federal
    department or agency, knowingly engages in a sexual act with
    another person who ‐‐
    (1) has attained the age of 12 years but has not attained
    the age of 16 years; and
    (2) is at least four years younger than the person so
    engaging;
    Or attempts to do so, shall be fined under this title,
    imprisoned not more than 15 years, or both.
    ....
    (c) Defenses. ‐‐ (1) In a prosecution under subsection (a) of
    this section, it is a defense, which the defendant must
    establish by a preponderance of the evidence, that the
    defendant reasonably believed that the other person had
    attained the age of 16 years. . . .
    1      On December 21, 2018, following Murphyʹs plea, § 2423(b) was amended to
    require travel ʺwith a motivating purpose,ʺ rather than travel ʺfor the purpose of,ʺ
    engaging in illicit sexual conduct. 
    18 U.S.C. § 2423
    (b) (as amended by Abolish Human
    Trafficking Act of 2017, Pub. L. No. 115‐392, § 14, 
    132 Stat. 5250
    , 5256 (2018)).
    5
    (d) State of Mind Proof Requirement. ‐‐ In a prosecution
    under subsection (a) of this section, the Government need
    not prove that the defendant knew ‐‐
    (1) the age of the other person engaging in the sexual
    act; or
    (2) that the requisite age difference existed between the
    persons so engaging.
    
    18 U.S.C. § 2243
     (emphasis added). Section 2243(a) thus criminalizes the
    substantive act of sexual abuse of a minor who is at least 12 years old, has not yet
    attained the age of 16 years old, and is at least four years younger than the
    defendant. As noted in subsection (d), this crime contains no requirement of
    proof of knowledge of the victimʹs age. As noted in subsection (c), however, it is
    an affirmative defense that the defendant reasonably believed the victim to be at
    least 16 years old.
    B.    Factual Background2
    In 2015, Murphy was a 25‐year‐old U.S. Air Force member. Murphy
    met the victim through the online dating website ʺPlenty of Fish.ʺ Murphy told
    the victim he was 19 years old when in fact he was 25 years old. The victimʹs
    profile stated that she was 19 years old. After their initial introduction on the
    2       These facts are undisputed and are drawn from the material available to the
    district court at the time it accepted Murphyʹs plea: the indictment, the plea agreement,
    and the plea transcript.
    6
    dating website, Murphy and the victim continued to correspond on the Facebook
    Messenger application. The victim eventually told Murphy that she was 16 years
    old. In fact, however, the victim was 14 years old ‐‐ at least 12 years old and not
    yet 16 years old.
    On the evening of September 16, 2015, Murphy drove from Rhode
    Island to Connecticut where the victim resided with her parents. Murphyʹs
    purpose in traveling to Connecticut was to engage in sexual conduct with the
    victim. Once he arrived in Connecticut, Murphy and the victim engaged in
    sexual intercourse.
    On September 24, 2015, shortly after his rendezvous with the victim
    in Connecticut, Murphy was interviewed by local Connecticut law enforcement.
    Murphy admitted to having sexual intercourse with the victim, and he stated
    that he believed the victim to be sixteen years old.
    C.    Procedural History
    On December 14, 2016, a grand jury in the District of Connecticut
    charged Murphy with violating 
    18 U.S.C. § 2423
    (b). The indictment charges that:
    From on or about September 16, 2015, through and
    including September 17, 2015, the defendant . . . traveled in
    interstate commerce, from the State of Rhode Island to the
    State of Connecticut, for the purpose of engaging in any
    illicit sexual conduct (as defined in Title 18, United States
    7
    Code, Section 2246(f)(1)) with a person under 18 years of
    age, that would be in violation of Title 18, United States
    Code, Chapter 109A, if the sexual act occurred in the special
    maritime and territorial jurisdiction of the United States,
    namely, sexual abuse of a minor in violation of Title 18,
    United States Code, Chapter 109A, Section 2243(a).
    All in violation of Title 18, United States Code, Section
    2423(b).
    Appʹx at 18. Hence, Murphy was charged with one crime: travel in interstate
    commerce for the purpose of engaging in illicit sexual conduct with a minor in
    violation of § 2423(b). The meaning of a critical component of the crime, ʺillicit
    sexual conduct,ʺ is defined with reference to a separate statute, § 2243(a).
    On June 5, 2017, Murphy appeared before a magistrate judge
    (Richardson, J.) and signed a plea agreement. The plea agreement provided that
    the crime to which he was pleading guilty had two ʺessential elementsʺ that
    ʺmust be satisfiedʺ:
    1. The Defendant traveled in interstate commerce
    2. For the purpose of engaging in illicit sexual conduct with
    another person.
    Appʹx at 85. The plea agreement did not define the term ʺillicit sexual conductʺ
    either by reference to statute or otherwise. At the plea hearing, the magistrate
    judge explained to Murphy that if he were to go to trial, the government would
    have to prove certain elements beyond a reasonable doubt. The court referenced
    8
    page one of the plea agreement and asked the government to read the elements
    aloud. Neither the government nor the magistrate judge explained the term
    ʺillicit sexual conduct.ʺ
    The plea agreement stipulated that (a) ʺ[the victim] told [Murphy]
    that she was sixteen when, in fact, she was less than sixteen but older than
    thirteen years oldʺ and (b) Murphy ʺtold the detectives that he believed her to be
    sixteen.ʺ Appʹx at 93. When asked to describe his conduct, Murphy explained to
    the magistrate judge:
    I traveled from Rhode Island to Connecticut to meet with
    this girl to engage in sexual activities. I should have known
    as the adult that it was a poor decision on my part and I
    should have known better. She was underage, and . . . I
    should have never taken that drive to begin with, but I did.
    . . . I should have known better once I arrived [at] the house
    that it was a poor situation and shouldnʹt have engaged in
    the activity.
    Appʹx at 54. Hence, Murphy did not provide any additional indication of his
    knowledge of the victimʹs age, other than that ʺ[s]he was underageʺ and he
    ʺshould have known better.ʺ
    Later in the plea hearing, the government stated on the record that
    were the case to go to trial, it would prove that ʺthe victim told [Murphy] that
    she was 16 even though her Plenty of Fish profile stated 19, but she was in fact
    9
    younger than 16, being older than 13 and under 16.ʺ Appʹx at 58. The
    government confirmed that Murphy ʺtold the detectives that he knew [the
    victim] to be 16.ʺ Id. at 60.
    The court proceeded to ask Murphy whether he ʺbelieve[d he was]
    . . . in fact guilty of the charge to which [he was] offering to plead guilty.ʺ Id. at
    62. Murphy responded in the affirmative. At the conclusion of the proceeding,
    the magistrate judge advised that he would recommend that the district court
    accept the plea. By order dated June 6, 2017, the district court (Bryant, J.)
    accepted the plea.
    Murphy was also charged, based on the same conduct, in
    Connecticut with sexual assault in the second degree in violation of Conn. Gen.
    Stat. § 53a‐71(a)(1).3 On July 7, 2017, approximately one month after he pled
    guilty in federal court, Murphy pled guilty to this offense in Connecticut
    3      This statute proscribes ʺsexual intercourse with another person [who is] thirteen
    years of age or older but under sixteen years of age [if] the actor is more than three
    years older than such other person.ʺ Conn. Gen. Stat. § 53a‐71(a)(1). Under this statute,
    the state is not required to establish
    that the accused knew that the person with whom he had sexual intercourse was
    under the age of sixteen; the state must prove only that the accused knowingly
    engaged in sexual intercourse with a person who, in fact, had not attained the
    age of sixteen.
    State v. Sorabella, 
    277 Conn. 155
    , 169 (2006).
    10
    Superior Court. Murphy agreed to be sentenced to the 9‐month mandatory
    minimum term of imprisonment as well as a 10‐year period of probation, which
    carries with it sex offender registration requirements. A judgment to this effect
    was entered on October 30, 2017.
    On September 13, 2017, Murphy appeared before the district court
    (Bryant, J.) for sentencing. The district court determined the applicable
    Guidelines range to be 70 to 87 monthsʹ imprisonment and sentenced Murphy to
    a below‐Guidelines sentence of 60 monthsʹ imprisonment, to run concurrently
    with his state sentence.
    This appeal followed.
    DISCUSSION
    Murphy argues that the district court erred in accepting his plea
    because it failed to ensure that (1) he understood the essential elements of the
    crime, namely the element of knowledge that the intended victim was under the
    age of 16 and (2) there was a factual basis for his plea. Because Murphy did not
    identify either of these claimed errors in the district court, we review for plain
    error only. See United States v. Torrellas, 
    455 F.3d 96
    , 103 (2d Cir. 2006).
    11
    The government argues that the district court did not err, much less
    plainly err, because (1) knowledge that the victim was under the age of 16 is not
    an element of the offense, and (2) even if such knowledge is an essential element,
    there was no plain error because Murphy understood the nature of the offense
    and there was an adequate factual basis for the district court to find that this
    element was satisfied. We address the two arguments in turn.
    I.     Knowledge of the Intended Victimʹs Age
    The government makes two arguments with respect to knowledge
    of the intended victimʹs age: first, it contends that knowledge that the intended
    victim is under the age of 16 is not an essential element of the crime of
    conviction; and, second, it argues in the alternative that if knowledge is required,
    it need only prove knowledge that the intended victim was under the age of 18.
    We address both arguments in turn.
    A.     Knowledge That the Intended Victim Is Under 16
    We conclude that knowledge that the intended victim is under the
    age of 16 is an element of the crime of conviction, 
    18 U.S.C. § 2423
    (b).4 We begin
    4      As discussed further, infra at 24‐25, our use of the term ʺknowledgeʺ throughout
    encompasses a defendantʹs belief, however mistaken, that the victim is under the age of
    16. See United States v. Jennings, 
    471 F.2d 1310
    , 1313 (2d Cir. 1973) (noting that
    culpability for a crime with a knowing mens rea ʺturns upon the defendantʹs knowledge
    or beliefʺ that the requisite facts exist); see also United States v. Langley, 
    549 F.3d 726
    , 729
    12
    with the language of the statute. Section 2423(b) is entitled ʺ[t]ravel with intent to
    engage in illicit sexual conduct.ʺ (emphasis added). By its terms, § 2423(b)
    criminalizes (a) the act of traveling interstate (b) ʺfor the purpose ofʺ engaging in
    ʺillicit sexual conduct.ʺ (emphasis added). Thus, what is required is the act of
    crossing state lines with the specific intent to engage in an illicit sexual act. See
    United States v. Han, 
    230 F.3d 560
    , 563 (2d Cir. 2000) (ʺ§ 2423(b) criminalizes
    crossing state lines with a criminal intentʺ).
    The intended illicit sexual conduct charged here is (1) a sexual act5
    with (2) a particular class of persons: those who have attained the age of 12, who
    have not yet reached the age of 16, and who are at least four years younger than
    the defendant. See 
    18 U.S.C. § 2243
    (a). Accordingly, the words of § 2423(b) make
    clear that the statute, when charged with § 2243(a) as the underlying Chapter
    109A offense, requires the government to prove that the defendant (a) traveled in
    interstate commerce (b) for the purpose of engaging in (1) a sexual act with (2) a
    person who is at least 12 years old but has not yet attained the age of 16 years old
    (8th Cir. 2008) (noting that § 2423(b) ʺrequire[s] the government to demonstrate [the
    defendant] believed [the victim] to be under the age of sixteenʺ (emphasis added)).
    5       The term ʺsexual actʺ is defined in 
    18 U.S.C. § 2246
    . The meaning of this term is
    not at issue in this appeal.
    13
    and is at least four years younger than the defendant. The crux of the offense is
    travel with the requisite intent.
    By its terms, then, § 2423(b) criminalizes interstate travel for the
    purpose of engaging in ʺillicit sexual conduct.ʺ What makes the otherwise
    innocent conduct of crossing state lines to engage in a sexual act with another
    person illicit is that the sexual conduct intended to be performed is with an
    individual that federal law ‐‐ in this case § 2243(a) ‐‐ has deemed incapable of
    consent: those under the age of 16. Accordingly, only when one travels
    interstate intending to engage in a sexual act with someone ʺwho has not
    attained the age of 16 years,ʺ see 
    18 U.S.C. § 2243
    (a), will that person be subject to
    up to 30 yearsʹ imprisonment, see Staples v. United States, 
    511 U.S. 600
    , 622 n.3
    (1994) (Ginsburg, J., concurring) (noting the presumption that crimes ʺrequire[]
    knowledge . . . of the facts that make the defendantʹs conduct illegalʺ).
    This result accords with common sense. Because § 2423(b)
    criminalizes mere travel with the requisite state of mind, and that state of mind
    in this case is intent to sexually abuse a minor in violation of § 2243(a), the crime
    is complete when one travels interstate with the intent of having sex with
    someone under the age of 16; the crime does not require the actual sexual abuse
    14
    of a minor. An example illustrates the absurdity of reading out the knowledge
    requirement:
    Imagine that John, who is 25 years old, registers with a dating
    website. He sees a profile for Mary, which states that she is 21 years old. John
    and Mary arrange a meeting. One Saturday night, John travels from
    Massachusetts to New Hampshire intending to have consensual sex with Mary.
    If Mary was actually a 15‐year‐old girl posing as a 21‐year‐old woman, then,
    under the governmentʹs reading of the statute, John would have violated
    § 2423(b) the moment he crossed over from Massachusetts to New Hampshire.
    This would be so despite the fact that John traveled with the intent to have sex
    with someone he believed to be 21 years old. Although his intent was to have
    sex with an adult, because Mary was actually 15, under the governmentʹs theory
    he would have committed a crime punishable by up to 30 yearsʹ imprisonment.
    This is simply not how the statute was intended to operate.
    Given this straightforward reading of the statute and common‐sense
    understanding of its proscription, it is unsurprising that many of our sister
    circuits have held that § 2423(b), when charged with § 2243(a) as the intended
    Chapter 109A offense, includes as an essential element knowledge that the
    15
    intended victim is under 16 years old. See United States v. Schneider, 
    801 F.3d 186
    ,
    189 (3d Cir. 2015) (noting that § 2423(b) criminalizes ʺtravel[] . . . with the intent
    to engage in sex with a minor between the ages of twelve and sixteenʺ); United
    States v. Stokes, 
    726 F.3d 880
    , 895‐96 (7th Cir. 2013) (noting that ʺ§ 2423(b) . . .
    criminalize[s] interstate and foreign travel undertaken for . . . the . . . purpose[]. . .
    [of] engaging in a sexual act with a minor between the ages of 12 and 16 if the
    perpetrator is at least four years older than the victimʺ); United States v. Langley,
    
    549 F.3d 726
    , 729 (8th Cir. 2008) (noting that § 2423(b) ʺrequire[s] the government
    to demonstrate [the defendant] believed [the victim] to be under the age of
    sixteenʺ); United States v. Buttrick, 
    432 F.3d 373
    , 374 (1st Cir. 2005) (noting that
    § 2423(b) criminalizes ʺtraveling in interstate commerce with the purpose of
    engaging in illicit sexual conduct with another person between twelve and
    sixteen years of ageʺ).
    Likewise, the conclusion that § 2423(b) includes as an element
    knowledge that the intended victim is under the age of 16 is supported by the
    federal pattern jury instructions. Sandʹs Modern Federal Jury Instructions
    provides that in a prosecution under § 2423(b), the government must prove two
    elements: (1) interstate travel and (2) intent to engage in illicit sexual conduct. 3
    16
    Modern Criminal Jury Instructions § 64‐21 (2019). It further provides that ʺʹillicit
    sexual conductʹ means . . . e.g., a sexual act with a person who had reached the
    age of twelve years old but had not reached the age of sixteen years old, and who
    is at least four years younger than the defendant.ʺ Id. § 64‐23 (brackets omitted).
    While ʺ[t]he government does not have to prove that the defendant actually
    engaged in illicit sexual conduct, [it] must prove that he or she traveled with the
    intent to engage in such conduct.ʺ Id. The comment explains that
    the government must allege and prove that the defendant
    traveled with the intent to engage in sexual activity that, if it
    had occurred, could have been charged as a federal offense if
    it had occurred in a federal enclave. Thus, it will be
    necessary to incorporate a general description of the conduct
    element of the sexual abuse offense that it is alleged
    defendant intended to commit. . . . Thus, . . . if the [intended]
    victim was between twelve and sixteen, then the age of the
    intended victim and the age difference between the victim and the
    defendant should be included. The age of consent under federal
    law is sixteen years old, so under federal law, sex with a person
    between sixteen and eighteen is chargeable only if the defendant
    engaged in coercive conduct, such as the use of force or threats
    or administering some intoxicant to the victim. If the
    intended victim is older than eighteen, it is not chargeable
    under section 2423(b) . . . .
    Id. § 64‐23 cmt. (emphasis added) (footnote omitted). The comment thus clarifies,
    consistent with the discussion that follows, see infra at 22‐24, that intended sex
    with a 16‐ or 17‐year‐old is chargeable only if a Chapter 109A offense other than
    § 2243(a) is implicated. Id.
    17
    We also note that the Department of Justice has itself acknowledged
    that prosecutions under § 2423(b) require proof of the defendantʹs purpose,
    including the age of the intended victim. In a 1998 letter, the Department of
    Justice urged Congress to remove § 2423(f)(1)ʹs cross‐reference to Chapter 109A
    in part because ʺa person who traveled in interstate commerce with the intention
    of having consensual sexual activity with a 16‐year‐old minor would not violate
    the statute,ʺ which had become ʺa barrier to prosecution of Section 2423(b) crimes
    in cases where the person travels to meet a minor aged 16‐18.ʺ H. R. Rep. No.
    105‐557, 105th Cong., 2d Sess. at 28 (letter of Ann M. Harkins, Acting Assistant
    Attorney General).
    In support of its position that knowledge that the intended victim is
    under the age of 16 is not an element of § 2423(b), the government likens
    § 2423(b) to § 2243(a), the underlying Chapter 109A offense. The government
    argues that § 2243(a) is a strict liability crime with respect to the defendantʹs
    knowledge of the victimʹs age, relying on the language in § 2243(d)(1) that the
    government need not prove that the defendant knew the age of the victim.
    Hence, the government contends that it ʺis difficult to see how such knowledge
    could be an element under [§] 2423(b).ʺ Governmentʹs Br. at 24. According to
    18
    the government, ʺsuch strict liability is not out of the ordinary for statutes
    concerning the exploitation of children.ʺ Id. at 27 (internal quotation marks
    omitted).
    As an initial matter, we reject the governmentʹs contention that §
    2243(a) imposes strict liability. Indeed, § 2243(c) provides that ʺit is a defense . . .
    that the defendant reasonably believedʺ that the victim had attained the age of
    16. 
    18 U.S.C. § 2243
    (c). Moreover, § 2423(b) and § 2243(a) differ in material
    ways. While § 2423(b) criminalizes the actus reus of interstate travel combined
    with the mens rea of a ʺpurpose ofʺ engaging in ʺillicit sexual conduct,ʺ § 2243(a)
    criminalizes the actus reus of engaging in a sexual act with a minor in certain
    federal enclaves and expressly provides that the government need not prove
    knowledge of the victimʹs age. See 
    18 U.S.C. § 2243
    (d). In other words, § 2243(a)
    is the prototypical crime that does not require knowledge of the victimʹs age
    because ʺthe perpetrator confronts the underage victim personallyʺ and thus has
    ʺa reasonable opportunity to observe the victim.ʺ United States v. Robinson, 
    702 F.3d 22
    , 32 (2d Cir. 2012) (discussing 
    18 U.S.C. § 1591
    ) (internal quotation marks
    omitted). By contrast, § 2423(b) is a crime of intent that criminalizes the
    ʺotherwise innocent conductʺ of traveling interstate, see United States v. X‐
    19
    Citement Video, Inc., 
    513 U.S. 64
    , 72 (1994), and so ʺa conviction is entirely
    sustainable even if no underlying criminal sexual act ever occurs,ʺ Vargas‐Cordon,
    733 F.3d at 375 (internal quotation marks omitted) (discussing § 2423(a)).
    Moreover, § 2423(b) contains no disclaimer of a mens rea requirement as to the
    victimʹs age, and we generally presume that criminal statutes contain mens rea
    requirements even where not explicitly provided in the statute. Staples, 
    511 U.S. at
    605‐06.
    The government also attempts to compare § 2423(b) with its
    statutory neighbor, § 2423(a). Section 2423(a) criminalizes the knowing
    transportation of an individual under the age of 18 with the intent that the
    individual engage in prostitution, and it does not require scienter as to the
    victimʹs age. 
    18 U.S.C. § 2423
    (a); see United States v. Griffith, 
    284 F.3d 338
    , 349‐51
    (2d Cir. 2002). But § 2423(a) too is materially different from § 2423(b).
    In Griffith, we held that the presumption in favor of a mens rea
    requirement as to the victimʹs age does not apply to § 2423(a) because ʺa
    defendant is already on notice that he is committing a crime when he transports
    an individual of any age in interstate commerce for the purpose of prostitution.ʺ
    Id. at 351. That the person is in fact under the age of 18 only aggravates the
    20
    already criminal act. See United States v. Taylor, 
    239 F.3d 994
    , 997 (9th Cir. 2001).
    Under § 2423(b), by contrast, the defendantʹs travel with the purpose of having
    sex with a minor under the age of 16 is the essence of the offense, without which
    § 2423(b) would criminalize purely innocent conduct not accompanied by any
    criminal intent.
    A better analogue to § 2423(b) as charged in this case is found in 
    18 U.S.C. § 2241
    (c). See United States v. Farley, 
    607 F.3d 1294
    , 1325 (11th Cir. 2010)
    (noting that although these ʺtwo statutory provisions apply to different age
    categories of victims,ʺ they ʺare materially identicalʺ). Section 2241(c)
    criminalizes ʺcross[ing] a State line with intent to engage in a sexual act with a
    person who has not attained the age of 12 years.ʺ As the Sixth Circuit has
    explained, ʺ[t]he critical fact that renders the defendantʹs conduct criminal . . . is
    . . . the intent with which the act was done,ʺ so while ʺit is no crime to travel
    between states, . . . to do so with the evil intent described in [§] 2241(c) will
    subject a person to the punishment prescribed by Congress.ʺ United States v.
    DeCarlo, 
    434 F.3d 447
    , 457‐58 (6th Cir. 2006). Accordingly, like § 2423(b), criminal
    liability under § 2241(c) ʺturns on the criminal intent with which [the defendant]
    acted, not on the existence of an actual child.ʺ Farley, 
    607 F.3d at 1325
    ; see also
    21
    United States v. Cryar, 
    232 F.3d 1318
    , 1323 (10th Cir. 2000) (ʺIt is certainly not the
    crossing alone but the crossing in order to engage in sexual activity with
    underage persons that is criminal.ʺ); accord United States v. King, 
    604 F.3d 125
    ,
    139‐40 (3d Cir. 2010); United States v. Lukashov, 
    694 F.3d 1107
    , 1121 (9th Cir. 2012).
    We thus reject the governmentʹs arguments that the crime of
    conviction does not contain a requirement that the defendant know that the
    intended victim was under the age of 16.
    B.     The Governmentʹs Alternative Argument
    In the alternative, the government argues that to the extent § 2423(b)
    requires knowledge of the intended victimʹs age, it need only prove that the
    defendant traveled interstate for the purposes of engaging in a sexual act with
    someone under the age of 18 (rather than 16), so long as that person is in fact
    under the age of 16. Government Br. at 25 (asserting that ʺcriminal liability
    attaches where the victim actually is under the age of 16, even if the defendant
    mistakenly believed that the victim is 16 or 17ʺ); see also Oral Argument at 10:25‐
    45 (ʺ[I]f there is an intent requirement as to age in [§] 2423, it is . . . activity with
    someone under the age of 18.ʺ).
    22
    In support of this argument, the government points to § 2423(f)(1)ʹs
    definition of ʺillicit sexual conduct.ʺ This subsection defines ʺillicit sexual
    conductʺ as ʺa sexual act . . . with a person under 18 years of age that would be in
    violation of chapter 109A if the sexual act occurredʺ in a federal enclave.
    (emphasis added). The government contends that a requirement that the
    defendant knows the victim to be between the ages of 12 and 16 would render
    superfluous § 2423(f)(1)ʹs ʺunder 18 years of ageʺ language. This argument
    misses the mark.
    Chapter 109A contains multiple provisions, some of which relate to
    sexual abuse of minors under the age of 16, see 
    18 U.S.C. §§ 2243
    , 2241(c), and
    some of which relate to rape and sexual abuse generally, without regard to the
    age of the victim, see 
    18 U.S.C. §§ 2241
    (a)‐(b), 2242. Section 2423(f) thus
    criminalizes interstate travel for the purpose of committing aggravated sexual
    abuse under 
    18 U.S.C. § 2241
    (a)‐(b) or sexual abuse under § 2242 ‐‐ but only
    where the victim is under the age of 18. The fact that the Chapter 109A offense
    used here ‐‐ § 2243(a) ‐‐ limits the intended victims to those aged at least 12 and
    no more than 15 does not, therefore, render this ʺunder 18ʺ limitation
    23
    superfluous. Indeed, this limitation is consistent with the general proscription of
    § 2423, which is entitled ʺTransportation of Minors.ʺ
    While the ʺunder 18ʺ limitation may be superfluous in this case, it is
    not superfluous in the overall statutory scheme. Where, as here, the government
    charges that a defendant has violated § 2423(b), with § 2243(a) as the underlying
    Chapter 109A offense, the ʺunder 18ʺ limitation will necessarily be met if the
    intent to commit the acts described in § 2243(a) is proven, because intending to
    have sex with someone between the ages of 12 and 16 necessarily includes the
    intent to have sex with someone under the age of 18. But § 2423(b)ʹs age
    limitation would not be met by the intent to commit other Chapter 109A
    offenses. Section 2242(2)(B) is a Chapter 109A offense that prohibits ʺknowingly
    . . . engag[ing] in a sexual act with another person if that other person is . . .
    physically incapable of declining participation in . . . that sexual act.ʺ Thus,
    where the government charges that a defendant has violated § 2423(b) with
    § 2242 as the underlying Chapter 109A offense, the ʺunder 18ʺ limitation will
    serve an important function. In addition to proving that the defendant (a)
    traveled interstate with (b) the intent to engage (1) in a sexual act (2) with
    someone who is physically incapable of declining participation in that sexual act,
    24
    the government will also likely have to prove that the defendant (3) knew the
    intended victim to be under the age of 18. This is so despite the fact that § 2242,
    standing alone, contains no limitation based on age.
    The governmentʹs proffered interpretation of § 2423(b) is also belied
    by the uniform authority holding that the victimʹs actual age is not an element of
    the crime. Indeed, there are many cases in which the government has
    successfully prosecuted violations of § 2423(b) where the intended victim was in
    fact an adult undercover detective posing as a minor under the age of 16.6 If the
    government were correct that the victimʹs age is merely a fact that must be
    proven, and not a component of the mens rea requirement, then § 2423(b) could
    not be used to prosecute individuals who traveled interstate with the intent to
    have sex with an individual they believed to be under the age of 16 if in fact the
    6       See United States v. Hicks, 
    457 F.3d 838
    , 841 (8th Cir. 2006) (ʺ[A] defendant may be
    convicted of violating § 2423(b) if he or she travels in interstate commerce with the
    purpose of engaging in criminal sexual conduct with a person believed to be a minor
    regardless of whether such person is actually a minor.ʺ); United States v. Tykarsky, 
    446 F.3d 458
    , 469, 471 (3d Cir. 2006) (noting that ʺ[t]he actual age of the intended victim is
    not an element of the offense; criminal liability turns simply on the purpose for which
    the defendant traveledʺ (internal quotation marks and brackets omitted)); United States
    v. Blazek, 
    431 F.3d 1104
    , 1108 (8th Cir. 2005); United States v. Root, 
    296 F.3d 1222
    , 1231‐32
    (11th Cir. 2002); see generally United States v. Vang, 
    128 F.3d 1065
    , 1069 (7th Cir. 1997)
    (discussing the history of § 2423(b) and its roots in the Mann Act); cf. United States v.
    McGuire, 
    627 F.3d 622
    , 624 (7th Cir. 2010) (upholding the § 2423(b) conviction of a
    defendant who ʺconfigured his travels [for religious retreats] to optimize his sexual
    activityʺ).
    25
    purported minor turned out to be an adult law enforcement officer posing as a
    minor.
    *      *      *
    In sum, it is not a violation of § 2423(b), when charged with 
    18 U.S.C. § 2243
    (a) as the intended Chapter 109A offense, to travel in interstate
    commerce for the purpose of engaging in a consensual sexual act with a 16‐year‐
    old. Rather, the government must prove that the defendant (a) traveled in
    interstate commerce (b) for the purpose of (1) engaging in a sexual act (2) with
    another person who is at least 12 years old but has not yet attained the age of 16
    years old and is at least four years younger than the defendant. Intent, including
    with respect to the age of the intended victim, is a critical element of the crime.
    II.   Plain Error
    We next consider whether, in light of our conclusion that Murphyʹs
    crime of conviction includes as an essential element knowledge that the intended
    victim was under the age of 16, the district court committed plain error in
    violation of Rule 11 of the Federal Rules of Criminal Procedure, in accepting
    Murphyʹs plea. Murphy claims that the district court violated Rule 11 by failing
    (1) to ensure that he understood the nature of the charge to which he pleaded
    26
    guilty, in violation of Rule 11(b)(1)(G), and (2) to determine that there was a
    factual basis for the plea, in violation of Rule 11(b)(3).
    A.     Standard of Review
    Because Murphy did not identify either of these claimed errors in
    the district court, we review for plain error only. See United States v. Torrellas, 
    455 F.3d 96
    , 103 (2d Cir. 2006). To satisfy the plain error standard, Murphy must
    demonstrate that ʺ(1) there was error, (2) the error was plain, . . . (3) the error
    prejudicially affected his substantial rights, [and] (4) the error seriously affected
    the fairness, integrity or public reputation of judicial proceedings.ʺ United States
    v. Lloyd, 
    901 F.3d 111
    , 119 (2d Cir. 2018) (internal quotation marks omitted).
    B.     Applicable Law
    Under Rule 11, the district court is required to ʺinform the defendant
    of, and determine that the defendant understands, . . . the nature of each charge
    to which the defendant is pleading.ʺ Fed. R. Crim. P. 11(b)(1)(G). ʺThis Rule . . .
    is designed to assist the district judge in making the constitutionally required
    determination that a defendantʹs guilty plea is truly voluntary.ʺ United States v.
    Maher, 
    108 F.3d 1513
    , 1520 (2d Cir. 1997). ʺWhat is essential . . . is that the court
    determine by some means that the defendant actually understands the nature of
    27
    the charges.ʺ 
    Id. at 1521
    . ʺThe nature of the inquiry required by Rule 11 must
    necessarily vary from case to case, and, therefore, . . . matters of reality, and not
    mere ritual, should be controlling.ʺ McCarthy v. United States, 
    394 U.S. 459
    , 467
    n.20 (1969) (brackets and internal quotation marks omitted).
    In addition to ensuring that the defendant understands the nature of
    the charges, ʺ[b]efore entering judgment on a guilty plea, the court must
    determine that there is a factual basis for the plea.ʺ Fed. R. Crim. P. 11(b)(3). The
    district court must ʺassure itself simply that the conduct to which the defendant
    admits is in fact an offense under the statutory provision under which he is
    pleading guilty.ʺ Lloyd, 901 F.3d at 123 (internal quotation marks omitted). This
    requirement ʺis designed to protect a defendant who is in the position of
    pleading voluntarily with an understanding of the nature of the charge but
    without realizing that his conduct does not actually fall within the charge.ʺ
    Maher, 
    108 F.3d at 1524
     (internal quotation marks omitted). ʺ[T]his factual basis
    must be sufficiently established by the record, rather than by assumptions of fact
    made by the trial judge which may be open to dispute.ʺ Seiller v. United States,
    
    544 F.2d 554
    , 564 (2d Cir. 1975). ʺA lack of a factual basis for a plea is a
    substantial defect calling into question the validity of the plea. Such defects are
    28
    not technical, but are so fundamental as to cast serious doubt on the
    voluntariness of the plea.ʺ United States v. Adams, 
    448 F.3d 492
    , 502 (2d Cir. 2006)
    (citation and internal quotation marks omitted).
    C.     Application
    We analyze the two claimed errors independently for purposes of
    the first two prongs of the plain error standard ‐‐ whether there was error, and
    whether the error was plain. We conclude that the district court did so err with
    respect to both of Murphyʹs claims. We then consider the third and fourth
    prongs of the plain error standard ‐‐ whether the errors prejudicially affected
    Murphyʹs substantial rights, and whether the errors seriously affected the
    fairness, integrity or public reputation of judicial proceedings. We conclude that
    they did.
    1.    Understanding of the Charge
    As we have held above, the charge of travel in interstate commerce
    for the purpose of engaging in an illicit sexual act as charged here includes as an
    essential element knowledge that the intended victim was under the age of 16.
    Neither Murphyʹs indictment, nor his plea agreement, nor the discussions at his
    plea hearing informed him of this essential element. Accordingly, the district
    29
    court erred in failing to ensure that Murphy understood the nature of the offense
    to which he pleaded guilty.
    Murphyʹs indictment alleges only that the ʺillicit sexual conductʺ he
    traveled with the intent to perform was the ʺsexual abuse of a minor in violation
    of Title 18, United States Code, Chapter 109A, Section 2243(a).ʺ Appʹx at 18.
    Murphyʹs plea agreement includes an even more threadbare statement of the
    elements, stating only that the ʺessential elementsʺ are that Murphy traveled
    interstate ʺ[f]or the purpose of engaging in illicit sexual conduct with another
    person.ʺ Id. at 85. At his plea hearing, Murphy was similarly informed only that
    the government must prove ʺthat the purpose of [his] travel was to engage in
    illicit sexual conduct with . . . another person.ʺ Id. at 53. At no point was
    Murphy told the meaning of ʺillicit sexual conductʺ or provided the statutory
    text of § 2243(a). And it was never explained to Murphy that § 2243(c) provides
    that it is a defense in a prosecution under §2243(a) that the defendant reasonably
    believed the victim ʺhad attained the age of 16 years.ʺ 
    18 U.S.C. § 2243
    (c).
    Indeed, the government, Murphy, defense counsel, and the district
    court were all apparently of the view that the crime of conviction included no
    requirement that the government prove that the defendant intended to engage in
    30
    a sexual act with an individual the defendant knew (or believed) to be under the
    age of 16. This misunderstanding was not limited to the proceedings leading up
    to the plea. It persisted through the sentencing phase, where the government
    argued that § 2423(b) did not require scienter as to the victimʹs age.7 Thus, there
    was error.
    The error was plain. ʺAn error is plain if it is clear or obvious under
    current law . . . [or] so egregious and obvious as to make the trial judge and
    prosecutor derelict in permitting it, despite the defendantʹs failure to object.ʺ
    United States v. Gore, 
    154 F.3d 34
    , 42‐43 (2d Cir. 1998) (internal citation and
    quotation marks omitted). As explained above, the governmentʹs proffered
    interpretation of the statute is inconsistent with its plain words. At least four
    circuits had held, in no uncertain terms, that § 2423(b), when charged with §
    2243(a) as the underlying illicit sexual conduct, ʺrequire[s] the government to
    demonstrate [the defendant] believed [the victim] to be under the age of sixteen.ʺ
    Langley, 
    549 F.3d at 729
    ; see also Schneider, 801 F.3d at 193; Stokes, 726 F.3d at 895‐
    7        At sentencing, the government stated that ʺwhether he believed her to be 16 or 14
    is irrelevant to the offense he stands convicted of.ʺ Appʹx at 214; see also id. at 223
    (defense counsel arguing ʺit doesnʹt matter whether you know the age of the younger
    person or notʺ); id. at 229 (defense counsel arguing that the defendantʹs ʺmental stateʺ is
    ʺnot . . . relevant to guilt or innocenceʺ).
    31
    96; Buttrick, 
    432 F.3d at 374
    . Although we have not had occasion to make this
    explicit, ʺ[n]either the absence of circuit precedent nor the lack of consideration
    of the issue by another court prevents the clearly erroneous application of
    statutory law from being plain error.ʺ United States v. Evans, 
    155 F.3d 245
    , 252 (3d
    Cir. 1998). The pattern federal jury instructions also confirm, in explicit terms,
    that the age of the intended victim is part of the ʺconduct element of the sexual
    abuse offenseʺ that the government must prove the ʺdefendant intended to
    commit.ʺ 3 Sandʹs Modern Federal Criminal Jury Instructions § 64‐23 cmt (2019).
    The government has pointed to no authority indicating otherwise.
    We thus conclude that the district court plainly erred in violation of Rule
    11(b)(1)(G).
    2.    Factual Basis for the Plea
    The district court also plainly erred in failing to ensure that there
    was an adequate factual basis for Murphyʹs plea. It is undisputed that ʺthe
    victim told [Murphy] that she was 16,ʺ Appʹx at 58, and Murphy ʺtold the
    detectives that he knew [the victim] to be 16,ʺ id. at 60. The government
    stipulated in the plea agreement that each of those representations was made and
    stated them on the record at Murphyʹs plea hearing. Nothing in the record on
    appeal ‐‐ the indictment, the plea agreement, or the plea transcript ‐‐ indicates
    32
    that the victim told Murphy she was under the age of 16 or that Murphy believed
    her to be under the age of 16. It was not a violation of § 2423(b), as charged here,
    for Murphy to travel interstate for the purpose of engaging in a sexual act with a
    16‐year‐old. Accordingly, the district court erred in accepting Murphyʹs plea.8
    This error was plain. The government argues that there was an
    arguable basis in fact for accepting Murphyʹs plea in part because Murphy stated
    in his plea allocution that the victim ʺwas underageʺ and that he ʺshould have
    known better.ʺ Appʹx at 54. These statements do not support the governmentʹs
    8      There was some discussion at the sentencing about the Murphyʹs knowledge of
    the victimʹs true age. Murphy argued below and maintains on appeal that he did not
    know her true age. And it is undisputed that Murphy never admitted to knowing her
    true age. The district court, however, found this assertion ʺdubious,ʺ Appʹx at 253,
    because according to the presentence report, the victimʹs Facebook page showed the
    victim to be 14 years old and thus the victimʹs true age ʺwas in the public domainʺ and
    available to Murphy, id. at 248. These ʺfactsʺ were not in the record at the time of the
    plea, and it is unclear whether we may consider them in evaluating whether there
    existed a factual basis for the plea under Rule 11. Compare Lloyd, 901 F.3d at 123 & n.9
    (holding that there was a sufficient factual basis for the plea because ʺthe District Court
    could . . . consider the presentence report in concluding that [the defendant]ʹs plea was
    supported by the requisite factual basisʺ), with Irizarry v. United States, 
    508 F.2d 960
    , 967‐
    68 (2d Cir. 1974) (holding that the facts used to determine whether there is a factual
    basis for the plea ʺmust be put into the record at the time of the pleaʺ and that ʺ[p]ost
    hoc explanations . . . are insufficientʺ), and Maher, 
    108 F.3d at
    1524‐25 (same).
    In any event, in light of the plea agreement, the partiesʹ stipulation, and the
    governmentʹs representations during the plea allocution, all of which confirmed that
    Murphy consistently stated that he believed the victim was 16 years old, there was not
    an adequate factual basis for the district court to accept Murphyʹs plea of guilty to
    violating § 2423(b) with § 2243(a) charged as the intended Chapter 109A offense.
    33
    contention that Murphy pled guilty to facts consistent with the crime of traveling
    interstate for the purpose of having sex with someone under the age of 16. They
    may merely evidence Murphyʹs sense of moral culpability, which is
    understandable given that Murphy lied about his age and had sex under cover of
    night with someone he thought was a 16‐year‐old almost 10 years his junior.
    None of this, however, changes the reality that the facts Murphy pleaded to are
    not actually criminal under his crime of conviction. Thus, the district court
    plainly erred in accepting the plea.
    3.    Prejudicial Effect on Substantial Rights
    The errors prejudicially affected Murphyʹs substantial rights. There
    is a reasonable probability that but for the errors, the defendant would not have
    entered the plea. See Lloyd, 901 F.3d at 119. In addition to the state and federal
    charges, the Air Force initiated separation proceedings against Murphy, seeking
    a dishonorable discharge. Under the military code, any member of the military
    who ʺcommits a sexual act upon a [person who has not yet attained the age of 16
    years but] who has attained the age of 12 yearsʺ is guilty of sexual assault of a
    child. See 10 U.S.C. § 920b(b). This statute provides as an affirmative defense
    ʺthat the accused reasonably believed that the child had attained the age of 16
    years.ʺ Id. § 920b(d)(2). Murphy successfully invoked this mistake of age
    34
    defense and, thus, the military ʺdidnʹt have legal basis to dischargeʺ him. Appʹx
    at 244; see also id. at 188‐90. As a result of his successful invocation of the defense,
    Murphy was honorably discharged from the Air Force.
    There is every reason to believe that if the district court had ensured
    that Murphy understood the nature of the § 2423(b) charge, Murphy would have
    argued ‐‐ and perhaps prevailed in doing so ‐‐ that he had not violated the
    statute because he traveled interstate for the purpose of having sex with a 16‐
    year‐old.
    4.     The Fairness, Integrity, and Public Reputation of Judicial
    Proceedings
    Finally, based on the seriousness, pervasiveness, and obviousness of
    the legal and factual defects here, the fairness of the judicial proceedings was
    seriously affected. Murphy did not understand the nature of the crime with
    which he was charged and, even assuming the truth of the governmentʹs
    allegations, Murphy did not admit having had the intent required for
    commission of the crime. Yet he was convicted. This strikes at the heart of the
    fairness, integrity, and public reputation of judicial proceedings. See Montgomery
    v. United States, 
    853 F.2d 83
     (2d Cir. 1988); Godwin v. United States, 
    687 F.2d 585
    ,
    35
    589‐91 (2d Cir. 1982). Accordingly, we exercise our discretion to correct these
    errors and vacate Murphyʹs conviction.
    D.     Request for Reassignment
    Murphy requests that, in the event of a remand, the case be
    reassigned to a different district judge. The request is denied. ʺRemanding a
    case to a different judge is a serious request rarely made and rarely granted.ʺ
    United States v. Singh, 
    877 F.3d 107
    , 122 (2d Cir. 2017) (internal quotation marks
    omitted). The error here was not just the district courtʹs; rather, both the
    prosecutor and defense counsel operated under the same misunderstanding. We
    are confident that the experienced and capable district court, with the benefit of
    the legal clarity provided herein, will preside over the proceedings on remand
    fairly and impartially. See 
    id.
    CONCLUSION
    Because we vacate Murphyʹs conviction, we do not consider his
    arguments that the sentence imposed was procedurally unreasonable, that
    defense counsel provided ineffective assistance at sentencing, or that the district
    court abused its discretion in imposing a special assessment.
    36
    For the reasons set forth above, we VACATE Murphyʹs conviction
    and REMAND to the district court for further proceedings.
    37