Legal Sidebari 
 
Babb v. Wilkie: The Age Discrimination in 
Employment Act and Mixed Motives 
March 25, 2020 
Can a federal employee claim age discrimination whenever age bias is one factor in an employment 
decision, or must she show that the employer would have made a different decision but for her age? The 
Supreme Court is to take up this question in
 Babb v. Wilkie as the latest turn in a decades-long legal 
debate on what qualifies as “discrimination” “because of” or “based on” an impermissible motive. A 
Supreme Court decision will likely resolve a circuit-court spit on the meaning of th
e Age Discrimination 
in Employment Act (ADEA), and a Court ruling could affect courts’ application of other, similarly 
worded antidiscrimination laws. This Sidebar discusses motive requirements in antidiscrimination cases, 
summarizes the litigation in 
Babb, and presents key considerations for Congress. 
The ADEA, “Mixed-Motives” Discrimination, “But-for” Discrimination, 
and Federal Workers  
Several federal statutes prohibit various forms of discrimination in the employment context. The most 
comprehensive of these,
 Title VII of the Civil Rights Act of 1964, prohibits many employment practices 
that treat workers differently on the basis of race, color, religion, sex, or national origin. A similar statute, 
the ADEA, bars discrimination against workers over 40 on the basis of age.  
Both th
e ADEA and
 Title VII also have separate provisions for federal and non-federal employees. 
Congress added these provisions as amendments and used language different from the non-federal-sector 
text, and courts must consider whether federal and non-federal workers should be treated the same under 
the two statutes. Differences in the ADEA’s text and history also raise questions about whether courts 
should follow rules developed to implement Title VII.  
In 
Babb, the Supreme Court may clarify the ADEA’s requirements for federal-sector employees, 
including, perhaps, whether courts should interpret the statute in line with Title VII. The issue before the 
Court is how to assess an employer’s age-related motive under this provision when faced with evidence of 
other motives unrelated to age that also informed an employer’s treatment of a worker. 
Courts have struggled to decide discrimination cases when confronted with evidence of an employer’s 
mixed motives—both a discriminatory motive prohibited by the statute and another, permissible motive. 
The Supreme Court has repeatedly wrestled with the problem. In
 Price Waterhouse v. Hopkins, a majority 
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of Justices recognized that Title VII would not afford liability if discriminatory animus “played a 
motivating part” in a workplace action, provided the employer proved that it would hav
e made the same 
decision even without the improper factor. The Court thus held that Title VII required discrimination to be 
the determining factor, or the “but-for” cause of an employee’s mistreatment. In response to 
Price 
Waterhouse, Congress
 amended Title VII so that an employee could raise a claim, although for partial 
relief, by showing an impermissible factor 
“was a motivating factor for any employment practice, even 
though other factors also motivated the practice.”  
Yet Congress did not amend the ADEA to add similar allowance for “mixed-motives” claims, even 
though it made oth
er changes to the ADEA around the same time. Thus, the High Court has sin
ce held (at 
least for non-federal employment) that ADEA claimants must show the employer would have treated 
them more favorably but for their age.  
On top of the confusion over whether ADEA and Title VII share causation requirements, adjudicators 
have encountered another difficulty: Whether the two statutes establish the same rules for federal and 
non-federal workers. The problem arose becau
se the ADEA and
 Title VII have separate, differently 
worded provisions for federal and non-federal employees, complicating causation analysis. This textual 
difference is at the core of the parties’ dispute in 
Babb. For non-federal employees, the ADEA bars 
“discriminat[ion] against any individual with respect to his compensation, terms, conditions, or privileges 
of employment
, because of such individual’s age.” The federal-sector provision mandates that “all 
personnel actions ... shall be m
ade free from any discrimination based on age.” Title VII uses similar 
language in its
 federal and non-federal provisions. Do these differences matter in deciding whether the 
statutes require but-for rather than mixed-motives causation?  
Courts have split in considering the motive requirement for the federal-sector portion of the ADEA. The 
Eleventh and Ninth Circuits have held that the federal-sector provision, like the ADEA’s main provisions, 
requires that age be the but-for cause of the employee’s harm. If the record shows that the employer had 
mixed motives, and would have taken the same action regardless of age, the employer would prevail. The 
D.C. Circuit, in contrast, has held that a showing of mixed motives—proof age was “
a factor,” but not the 
deciding factor—will suffice. The court pointed to the federal-sector ADEA’s “sweeping language”—
instructing that employees be free from “any”
 age-based discrimination—in distinguishing it from the 
non-federal provision. 
Against this background, Babb
 asked the Supreme Court to review her ADEA and Title VII claims and 
the United States
 agreed that the issues called for high court review. The Court granted review limited to 
the ADEA question. The key question for the Court is how to construe the federal-sector ADEA’s use of 
the phrase “shall be made free from any discrimination based on age.” 
Background of Babb v. Wilkie  
Norris Babb, a pharmacist for the Department of Veterans Affairs (VA), alleged that the VA denied her 
and all other women pharmacists over age 50 training and certification they needed to advance. Men and 
other, younger women, she asserted, received these benefits. After Babb helped women coworkers over 
age 40 to file discrimination complaints, the VA denied her promotion in favor of younger women. Babb 
filed a discrimination claim based on 
the ADEA (claiming age discrimination) and
 Title VII (alleging 
discrimination based on sex and retaliation for her participation in other employees’ complaints).  
A federal district court granted summary judgment to the VA. On appeal, Babb argued that the court 
should have considered her claim that the VA acted out of mixed motives—that is, it impermissibly 
denied her promotion in part because of age and retaliation, even if other, non-actionable factors also 
contributed to the decision. The Eleventh Circuit
 upheld the decision against Babb. It would not be 
enough that age bias or retaliation factored into the decision, the court held, so long as the VA would have 
  
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denied Babb’s promotion without considering age or retaliation. In Babb’s case, managers explained that 
she lacked relevant experience and had criticized other employees during her interview.  
The circuit court noted with concern, though, the textual differences in the ADEA’
s federal-sector 
provision, pointing out the language was 
“quite unlike” that governing other, non-federal employees and 
that this might suggest federal employees could prevail with a showing of mixed motives. The court 
acknowledged, however, that its prior precedent required federal and non-federal ADEA claimants meet 
the same standard; each must show that age was the deciding factor or but-for cause of an unfavorable 
workplace decision.  
In her briefing to the Supreme Court, Babb
 emphasized the federal-sector ADEA provision’s use of the 
phrase “shall be made free from any discrimination based on age,” language absent from the text 
governing other employers. She argued that the language allowed federal workers like her to prove 
discrimination when an employer uses age or retaliation as a motivating factor. Being “free from any 
discrimination,” she posited, means barring age from the workplace 
“decision-making process,” not 
merely its outcome.  
Others have read ADEA’s federal-sector provision this way, Babb pointed out. Th
e D.C. Circuit has held 
that Congress deliberately provided federal employees with broader protection than private employees 
under the act. Th
e Equal Opportunity Employment Commission (EEOC) and th
e Merit Systems 
Protection Board similarly allow federal employees to claim mixed-motive discrimination in agency 
adjudication. Agencies’ assessment that the imprecise statutory language in the ADEA calls for mixed-
motive analysis in assessing federal-sector age discrimination claims, Babb’s counsel contended, warrants 
the Court’
s deference. 
In response, the government
 argued that “discrimination” in personnel actions typically describes making 
a less favorable decision for an impermissible reason, rather than merely considering an impermissible 
factor along the way. The Supreme Court has repeate
dly held that statutory phrases lik
e “based on” and 
“because of” in anti-discrimination statutes require that a discriminatory motive be decisive—an 
unsurprising interpretation, the government explained, given that but-for causation is 
“the default rule” in 
tort law. The government
 urged the Court to resist introducing “anomalies in federal anti-discrimination 
law.” Congress would have used more deliberate language, in the government’s view, had it wanted to 
create a separate standard for federal employees under the ADEA. As for deference to agencies’ 
interpretation, the government contended that agency
 regulations did not provide the relief Babb sought 
and administrative
 guidance and agency decisions did not effectively apply the statutory language. 
At argument on January 15, Justice Ruth Bader Ginsburg suggested that the government’s reading of the 
ADEA’s federal-sector provision would render its “extra words” mere “surplus.” Justices concentrated on 
the distinction between an employer’s decision-making process versus its outcome, asking if the “actions” 
the statute governed included deliberations or only the final result. Chief Justice John Roberts asked if a 
plaintiff could prevail whenever a deciding official made a comment on age, such as “OK, Boomer.” If so, 
the Chief Justice suggested, the statute might devolve into “a regulation of speech in the workplace.”  
After the argument, the Justices ordered supplemental briefing on whether other laws, including civil 
service laws, offered relief on a mixed-motive theory. In the supplemental brief, Babb’s couns
el stated 
that civil service laws are not “directly enforceable,” meaning that the laws set up rules governing internal 
policies, but individual workers cannot sue to enforce those rules. The government
 emphasized that civil 
service and other administrative and oversight mechanisms “provide the same basic prospective relief by 
preventing agencies from adopting or continuing impermissible age-based policies.” The Court will likely 
decide the case by late June. 
  
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Potential Outcomes and Legislative Implications 
The call for supplemental briefing may signal the Justices’ wish to decide the case on grounds specific to 
the federal-employment context, perhaps by concluding that Congress drafted the federal-secto
r ADEA 
with preexisting merit-systems protections in mind. Those protections generally prevent government 
officials from including any non-merit factor, including age, in employment decisions, practices, and 
policies whether or not age amounts to a but-for cause of any employment decision. The fact that the 
federal government already mandated merit systems principles may explain why Congress would set a 
different standard for federal employers in litigation. 
Whatever the result, the Court’s decision will likely reconcile a circuit split, resolving how lower courts 
will construe the ADEA’s federal-sector provision, and clarify whether federal and non-federal claims 
have the same causation requirement. Even though the Court has elected not to address the similar 
federal-sector retaliation language in
 Title VII, its reasoning in 
Babb will likely influence that provision’s 
application. So f
ar courts have concluded that the Title VII federal-sector retaliation provision requires a 
showing of but-for causation, while th
e EEOC has taken the opposite approach and applied a mixed-
motive analysis. 
Babb may more broadly clarify when courts should apply a but-for causation standard in 
antidiscrimination measures. The Court could, for example, emphasize but-for causation as a default rule, 
as it did in a similar decision on March 23,
 Comcast Corp. v. National Association of African American-
Owned Media. In that case, the Court took up the causation question 
under Section 1981 of the Civil 
Rights Act of 1866, which bars racial discrimination in contracts. The nineteenth-century statute used 
language unlike modern antidiscrimination measures, affording 
“[a]ll persons” the “same right ... to make 
and enforce contracts ... as is enjoyed by white citizens.” Though 
Comcast concerns Section 1981, the 
question presented in the case was largely the same as often arises under modern antidiscrimination 
statutes; it required the Court to decide whether the plaintiff must allege that race was 
the reason Comcast 
refused to broadcast his independent TV channels, or if it is enough that race was a “motivating factor.” 
Th
e Comcast Court concluded that a plaintiff must allege “but-for” causation and emphasized this as the 
“typical[]” default rule. 
Babb will thus provide the Court’s second opportunity to clarify 
antidiscrimination causation requirements. The Court’s holdings in the two cases may inform 
interpretation of existing measures and drafting of future ones.  
Whichever way 
Babb comes out, it may prompt Congress to amend the ADEA, Title VII, or both. 
Congress could, for example, clarify whether federal and non-federal employees are subject to the same 
causation standard. It may elect to add federal employees into the statutes’ main provisions if uniformity 
is preferable. Congress may also consider amending the ADEA, portions of Title VII, and other, similar 
antidiscrimination statutes to apply uniformly the mixed-motives standard 
it added to Title VII in 1991. 
Under that standard, an employee may prevail if discrimination played a role in her mistreatment, even if 
other factors determined the outcome. The employee’s remedies in this circumstance, however, are 
limited to declaratory relief, injunctive relief, and attorney’s fees. Back pay and reinstatement are 
unavailable.  
Recent proposals along these lines,
 H.R. 1230 and
 S. 485, would extend the mixed-motives analysis and 
limited remedies to ADEA claimants generally. They would also apply the standard to retaliation claims, 
including those under Title VII, for both federal and non-federal employees. The bills further propose 
similar changes to two statutes reaching disability discrimination, t
he Americans with Disabilities Act and 
th
e Rehabilitation Act. One stated purpose of
 S. 485 is to reject the Court’s conclusion that prior failure to 
amend statutes other than Title VII suggests an intent to disallow mixed-motive claims. 
 
  
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Author Information 
 April J. Anderson 
   
Legislative Attorney  
 
 
 
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