2. The Defendant’s Summary Judgment Motion
a. The Plaintiff’s Discrimination Claim
The Office of the Sergeant-at-Arms claims that it is entitled to summary judgment on the first count of the amended complaint because the plaintiff has failed to establish a prima facie case of race or gender discrimination. Def.’s Mem. at 14. The Court agrees for the reasons that follow.
Under the CAA, Senate employees are to be free from any discrimination based on race or gender. 2 U.S.C. §§ 1301(3)(B), 1311(a)(1). When summary judgment is sought by a defendant on a discrimination claim filed under the CAA, the Court is required to assess the challenge utilizing the test announced in McDonnell Douglas Corp. v. Green, 411 U.S. 792, 93 S.Ct. 1817, 36 L.Ed.2d 668 (1973). See Fields v. Office of Johnson, 459 F.3d 1, 15 n. 24 (D.C.Cir.2006) (“[The plaintiff] alleges racial and gender discrimination in violation of 2 U.S.C. § 1311, which incorporates § 703 of the Civil Rights Act of 1964, 42 U.S.C. § 2000e-2, to which the McDonnell Douglas framework applies.... ”). Under McDonnell Douglas, a plaintiff has the initial burden of proving a prima facie case of discrimination by a preponderance of the evidence. McDonnell Douglas, 411 U.S. at 802, 93 S.Ct. 1817. Once the plaintiff has established a prima facie case, the burden then shifts to the defendant “to articulate some legitimate, nondiscriminatory reason for the [the defendant’s actions].” Id. If such an explanation is provided, the plaintiff then shoulders the burden of showing that the legitimate, nondiscriminatory reason offered by the defendant was a mere pretext for discrimination. Id. at 804, 93 S.Ct. 1817.
To establish a prima facie case in the absence of direct evidence of discrimination, a plaintiff must show “that: ‘(1) she is a member of a protected class; (2) she suffered an adverse employment action; and (3) the unfavorable action gives rise to an inference of discrimination.’ ” Stella v. Mineta, 284 F.3d 135, 145 (D.C.Cir.2002) (quoting Brown v. Brody, 199 F.3d 446, 452 (D.C.Cir.1999)). In this case, the plaintiff has satisfied the first element of her prima facie case — that she is a member of a protected class. The defendant argues, however, that the plaintiff has failed to establish either or both the second element of a prima facie case — an adverse employment action, Def.’s Mem. at 16, and the third element — rebuttal of its legitimate, non-discriminatory reasons for taking the actions challenged by the plaintiff, id. at 14.
An adverse employment action is defined as any “tangible employment action [that] constitutes a significant change in employment status, such as hiring, firing, failing to promote, reassignment with significantly different responsibilities, or a decision causing a significant change in benefits.” Brown, 199 F.3d at 456. In other words, “[a]n ‘employment decision does not rise to the level of an actionable adverse action ... unless there is a tangible change in the duties or working conditions constituting a material employment disadvantage.’ ” Stewart v. Evans, 275 F.3d 1126, 1134 (D.C.Cir.2002) (quoting Walker v. WMATA, 102 F.Supp.2d 24, 29 (D.D.C.2000)). Thus, adverse employment actions do not include “ ‘[p]urely subjective injuries,’ such as dissatisfaction with reassignment, public humiliation, or loss of reputation.” Nichols v. Truscott, 424 F.Supp.2d 124, 136 (D.D.C.2006) (quoting Holcomb v. Powell, 433 F.3d 889, 902 (D.C.Cir.2006)); accord Ginger v. District of Columbia, 527 F.3d 1340,