Introduction
Consider the following scenario: A married couple is trying to settle in the United States.
Only one spouse is a U.S. citizen.
They apply for a family visa—a pathway to permanent residency for the noncitizen spouse—and wait almost two years without receiving a decision.
After hearing stories from other couples experiencing the same delay, they suspect discrimination by the local immigration office.
They join with other couples to file a class action lawsuit, alleging unlawful and discriminatory delays in visa adjudication.
Then, just weeks after the lawsuit is filed, the government locates and approves each couple’s application, resolving years of unexplained delay with sudden dispatch.
The government then moves to dismiss the case as moot, insisting the couples no longer have a personal stake in the outcome. The couples and their lawyers are certain that others continue to face delays. They oppose the government’s motion and move for class certification.
The question is: Should the court allow the class claims to proceed or dismiss the entire case as moot?
Under current Supreme Court doctrine, nothing stands in the way of dismissal. The traditional mootness exceptions—the “capable of repetition yet evading review” exception
and voluntary cessation
exception—do not apply. Both require some possibility that the plaintiff will again face the challenged harm.
But since these couples are on track for permanent residency, they are unlikely to encounter future visa delays. The class action exception, which lets class claims continue even if the lead plaintiff’s case becomes moot, applies only after a class is certified.
Because class certification has not occurred, this exception offers no protection.
For proposed but not-yet-certified class actions, only one exception might save the class claims: the inherently transitory exception. This lesser-known exception allows a plaintiff with a moot claim to continue seeking class certification if: (1) the claim is so fleeting that no named plaintiff could maintain it long enough for certification and (2) there is a constant class of persons suffering the deprivation alleged by the plaintiff.
While this exception may appear to fit the couples’ situation, a crucial limitation exists: The Supreme Court has signaled the exception applies only to claims that naturally expire—not to those deliberately mooted through litigation tactics.
Here, the couples’ claims did not naturally lapse; they were (seemingly) extinguished by the government’s intentional decision to resolve the plaintiffs’ cases just after the lawsuit was filed. As a result, the litigation might end, not because the alleged systemic misconduct has stopped, but because the government mooted the named plaintiffs’ claims just in time to avoid judicial scrutiny of its broader practices.
This scenario illustrates what this Article calls the “strategic mootness gap.” In this Article’s framework, mootness has two species. Mootness can occur naturally (“inherent mootness”) or through deliberate action (“strategic mootness”).
It also can arise in different procedural contexts—in individual cases, precertification class actions or postcertification class actions. These distinctions interact, and for most of their intersections, mootness doctrine has a response. But one intersection remains conspicuously unaddressed: strategic mootness in precertification class actions. This gap effectively allows defendants to immunize themselves from class liability by selectively resolving individual claims before class certification.
The strategic mootness gap in Supreme Court mootness exception doctrine can be represented in a simple chart:
Figure 1. Mootness Exceptions and the Strategic Mootness Gap
|
Inherent Mootness |
Strategic Mootness |
| Individual Action
|
The case is not moot if the claim is capable of repetition yet evading review.
Example: Pregnancy litigation
|
The case is not moot if the defendant voluntarily ceased the challenged activity, unless the defendant can prove complete eradication of the alleged violation’s effects and no reasonable expectation of recurrence.
Example: Individual challenge to placement on the No-Fly List
|
| Precertification Class Action |
The proposed class claims are not moot if the claim is inherently transitory.
Example: Pretrial detention conditions litigation
|
*The strategic mootness gap*
|
| Certified Class Action |
Class action exception
|
Class action exception
or
Settlement approval under Federal Rule of Civil Procedure 23(e)
|
This Article identifies and addresses the strategic mootness gap. This examination arrives at a critical moment as recent developments have narrowed the procedural tools available for securing structural and systemic relief. Just last term, in Trump v. CASA, the Supreme Court sharply restricted universal injunctions, placing renewed weight on the class action as the central vehicle for nationwide remedies.
Yet the path to class certification has grown longer and more demanding as courts have imposed heightened scrutiny and more rigorous evidentiary requirements.
While some cases challenging uniform policies may still proceed quickly,
many class actions now require extensive discovery before issuing a certification ruling.
In this environment, what happens in the lead-up to class certification can make or break the possibility of aggregate relief.
If defendants can end a case during the precertification window, they can preempt the very mechanism CASA identified as the legitimate procedural vehicle for broad relief.
The stakes come into sharper focus when one recalls what class litigation is uniquely positioned to achieve. Class actions serve as a crucial equalizer in the legal system. They empower individual plaintiffs, particularly those with limited resources, to join forces, share costs, and unite against bigger, better-funded defendants.
For defendants, a class action poses a significant threat. A minor and inconsequential claim in an individual lawsuit can transform into a larger, more visible, and more expensive matter when pursued as a class action.
Defendants therefore are highly motivated to end cases before they are certified as class actions.
If a defendant can evade a class action altogether by promptly addressing the grievances of a few individual plaintiffs, why wouldn’t it?
The strategic mootness gap empowers defendants to take advantage of the unequal playing field characteristic of the precertification stage. By “picking off” or “buying off” the named plaintiffs before a class is formally certified, a defendant can sidestep judicial review of its actions and avoid class-wide liability for its wrongdoing. The strategic mootness gap thus fosters improper gamesmanship, generates inefficient case-by‑case adjudication, allows systemic harms to go unaddressed, and prevents courts from settling important legal questions. And by allowing defendants to exploit the pre–class certification power imbalance, the gap perpetuates disparities in access to justice that the class action should be uniquely positioned to confront. Ultimately, the strategic mootness gap undermines one of the most powerful procedural tools that small plaintiffs have to address exploitation by larger defendants.
To be sure, some may regard this critique of the strategic mootness gap as rooted in a “romantic” image of class action litigation.
Certainly, not every class lawsuit is a David and Goliath story. The anti–class action narrative emphasizes that, at least in some cases, class actions are driven by well-funded lawyers more interested in their profits and reputations than in client welfare.
Many named plaintiffs, for their part, are rationally uninterested in the long haul of a class action.
A plaintiff with a small damages claim (typical of an aggregated-damages class action) has little motivation to continue a case after their own has been remedied.
And a plaintiff seeking injunctive relief (typical of an injunctive civil rights class action) may be desperate to protect their own well-being over pursuing some benefit for the greater good.
If a defendant decides to remedy a plaintiff’s individual claim, many plaintiffs would readily and rationally walk away from further litigation. What a plaintiffs’ lawyer might condemn as a strategic “picking off” could be viewed by a named plaintiff as simply “making whole.”
Despite this complexity, the strategic mootness gap has gone underexamined. Scholars and courts have long recognized the phenomenon of defendants “picking off” named plaintiffs to avoid class liability.
But much of the existing scholarship treats the pick-off as a narrow procedural problem rather than a structural vulnerability that cuts across precertification class litigation broadly.
Recent scholarship has also examined the government’s distinctive ability to moot individual claims, often in contexts in which defendants can unilaterally end litigation.
But this work largely overlooks how these dynamics operate in the class action context—where strategic mooting can systematically prevent class certification. This Article builds on both bodies of work to address strategic mootness as a doctrinal gap: one that allows defendants to end cases before courts can determine whether class treatment is appropriate.
This Article proceeds as follows. First, in Parts I and II, it identifies the strategic mootness gap. Part I frames the gap as a matter of theory by establishing that the gap creates precisely the scenario that existing mootness exceptions address: when the plaintiff’s personal stake disappears but the underlying legal issue remains unresolved.
When defendants pick off putative class representatives, they eliminate individual claims but leave systemic problems untouched—exactly the kind of “personal stake mootness” that courts routinely save through exceptions.
Part II then traces the gap as a matter of doctrine, showing how the Supreme Court has developed exceptions for inherently transitory claims and certified class actions, yet has never extended those exceptions to cover proposed class actions deliberately mooted before certification. The result is a doctrinal framework that is both underinclusive and internally incoherent.
Second, in Part III, the Article maps what strategic mootness looks like in practice across multiple areas of law. Courts and commentators have tended to frame the issue narrowly, focusing on cases in which defendants attempt to moot class actions through Rule 68 offers of judgment or monetary tenders—particularly in consumer protection litigation. This lens responds to developments on the Supreme Court’s docket. But it also reduces strategic mootness to a technical conflict between procedural rules, obscuring the broader phenomenon. In fact, strategic mootness plays out in diverse legal contexts and through a range of defendant tactics—from asylum seekers being offered individual processing two days after filing a complaint over asylum process access,
to Medicaid applicants who were enrolled in Medicaid after alleging unlawfully delayed eligibility determinations.
Part III thus examines this broader landscape, illustrating the breadth of the strategic mootness gap. It shows that while some lower courts have acknowledged the phenomenon, their responses have been inconsistent. In the absence of a clear doctrinal framework, courts have applied existing mootness exceptions unevenly, often straining their logic to account for new pick-off strategies. This Part also explores how, beyond doctrinal confusion, the strategic mootness gap threatens several core procedural values: judicial economy, deterrence, access to justice, and the courts’ ability to resolve important legal questions. This analysis thus frames the strategic mootness gap as a systemic threat to the integrity of class action litigation.
Finally, Part IV offers a possible response to the strategic mootness gap in the form of a new mootness exception called the “picking off exception.” Under this exception, defendants who resolve named plaintiffs’ claims before certification would bear the burden of showing that their conduct does not undermine the viability of the class certification process. This approach draws from the logic of existing mootness exceptions but recalibrates them to address strategic behavior in the precertification window. If implemented, it could offer courts a practical tool to protect class adjudication and deter procedural gamesmanship.
Ultimately, the strategic mootness gap raises fundamental questions about the limits of justiciability, the role of power imbalances and gamesmanship in class litigation, and the viability of the class action device as a whole. This Article takes up these questions, offering both a structural account of the problem and a doctrinal path forward.