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599 (1995). In Section 1505, the nexus can include a connection to a "pending" federal agency proceeding or a congressional inquiry or investigation. Under both statutes, the government must demonstrate "a relationship in time, causation, or logic" between the obstructive act and the proceeding or inquiry to be obstructed. Id. at 599; see also Arthur Andersen LLP v. United States, 544 U.S. 696, 707-708 (2005). Section 1512(c) prohibits obstructive efforts aimed at official proceedings including judicial or grand jury proceedings. 18 U.S.C. § 1515(a)(1)(A). "For purposes of" Section 1512, "an official proceeding need not be pending or about to be instituted at the time of the offense." 18 U.S.C. § 1512(f)(1). Although a proceeding need not already be in progress to trigger liability under Section 1512(c), a nexus to a contemplated proceeding still must be shown. United States v. Young, 916 F.3d 368, 386 (4th Cir. 2019); United States v. Petruk, 781 F.3d 438, 445 (8th Cir. 2015); United States v. Phillips, 583 F.3d 1261, 1264 (10th Cir. 2009); United States v. Reich, 479 F.3d 179, 186 (2d Cir. 2007). The nexus requirement narrows the scope of obstruction statutes to ensure that individuals have "fair warning" of what the law proscribes. Aguilar, 515 U.S. at 600 (internal quotation marks omitted).
The nexus showing has subjective and objective components. As an objective matter, a defendant must act "in a manner that is likely to obstruct justice," such that the statute "excludes defendants who have an evil purpose but use means that would only unnaturally and improbably be successful." Aguilar, 515 U.S. at 601-602 (emphasis added; internal quotation marks omitted). "[T]he endeavor must have the natural and probable effect of interfering with the due administration of justice." Id. at 599 (citation and internal quotation marks omitted). As a subjective matter, the actor must have "contemplated a particular, foreseeable proceeding." Petruk, 781 F.3d at 445-446. A defendant need not directly impede the proceeding. Rather, a nexus exists if "discretionary actions of a third person would be required to obstruct the judicial proceeding if it was foreseeable to the defendant that the third party would act on the [defendant's] communication in such a way as to obstruct the judicial proceeding." United States v. Martinez, 862 F.3d 223, 238 (2d Cir. 2017) (brackets, ellipses, and internal quotation marks omitted).
Corruptly. The word "corruptly" provides the intent element for obstruction of justice and means acting "knowingly and dishonestly" or "with an improper motive." United States v. Richardson, 676 F.3d 491, 508 (5th Cir. 2012); United States v. Gordon, 710 F.3d 1124, 1151 (10th Cir. 2013) (to act corruptly means to "act[] with an improper purpose and to engage in conduct knowingly and dishonestly with the specific intent to subvert, impede or obstruct" the relevant proceeding) (some quotation marks omitted); see 18 U.S.C. § 1515(b) ("As used in section 1505, the term 'corruptly' means acting with an improper purpose, personally or by influencing another."); see also Arthur Andersen, 544 U.S. at 705-706 (interpreting "corruptly" to mean "wrongful, immoral, depraved, or evil" and holding that acting "knowingly ... corruptly" in 18 U.S.C. § 1512(b) requires "consciousness of wrongdoing"). The requisite showing is made when a person acted with an intent to obtain an "improper advantage for [him]self or someone else, inconsistent with official duty and the rights of others." Ballentine's Law Dictionary 276 (3d ed. 1969); see United States v. Pasha, 797 F.3d 1122, 1132 (D.C. Cir. 2015); Aguilar, 515 U.S. at 616 (Scalia, J., concurring in part and dissenting in part) (characterizing this definition as the "longstanding and well-accepted meaning" of "corruptly").
Witness tampering. A more specific provision in Section 1512 prohibits tampering with a witness. See 18 U.S.C. § 1512(b)(1), (3) (making it a crime to "knowingly use[] intimidation ... or corruptly persuade[] another person," or "engage[] in misleading conduct towards another
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