Once a delay lawsuit is served, the government’s lawyers usually respond in one of two ways: they decide the case, or they ask the judge to dismiss it. The motion to dismiss draws on a familiar set of arguments, and knowing them in advance helps a plaintiff shape the complaint from the start. This guide describes the most common defenses and how plaintiffs typically answer them.
How a motion to dismiss works
A motion to dismiss asks the court to end the case at an early stage without a trial, based on the complaint and the documents attached to it. In federal court, defendants usually rely on Rule 12(b)(1), which concerns the court’s power to hear the case, and Rule 12(b)(6), which concerns whether the complaint states a legal claim.
In delay cases the motion is usually filed within the 60-day response period. The plaintiff then files an opposition, and the judge decides the motion on the papers or after a short hearing. Because the facts are mostly documents, these motions are often decided quickly.
Defense one: the court lacks jurisdiction
The most common jurisdictional argument cites 8 U.S.C. § 1252(a)(2)(B)(ii), which limits judicial review of decisions that the immigration statute commits to the discretion of the Attorney General or the Secretary of Homeland Security. The government argues that because the benefit is discretionary, the court cannot interfere.
Plaintiffs respond that the statute bars review of a discretionary decision, not a claim that the agency has failed to make any decision at all. Many district courts accept that distinction, although others do not. The Supreme Court’s decisions in Kucana v. Holder (2010) and Patel v. Garland (2022) address how far these jurisdiction-limiting provisions reach, and both are cited on each side.
Defense two: no clear, non-discretionary duty
The government argues that mandamus requires a clear duty and that, for discretionary benefits, none exists. For the APA claim, it invokes Norton v. SUWA, arguing that the plaintiff has not identified a discrete action the agency must take.
The standard response is that deciding an application is a discrete action that the agency must take, even when the outcome is discretionary. The plaintiff points to the statute or regulation requiring adjudication and to the APA’s reasonable-time provision.
Defense three: an adequate alternative remedy
Because mandamus is extraordinary, the government argues it is unavailable when another adequate remedy exists, such as an APA claim. Some courts agree and dismiss the mandamus count while keeping the APA count.
Plaintiffs address this by pleading both claims from the start so that the case survives under either theory.
Defense four: the delay is not unreasonable
This is the heart of most cases. The government submits that the agency has a large workload, that cases are decided roughly in order, that security checks take time and that moving one case up would harm others. It often supports the argument with a declaration from an agency official describing the queue.
Plaintiffs respond using the TRAC factors. They show that the wait is far beyond the published range, that later-filed cases have been decided, that harm is concrete, and that the agency’s explanation is generic. A court may deny a motion to dismiss on this ground when facts about reasonableness are disputed, because those facts are better decided on a fuller record.
Defense five: venue and transfer
The government sometimes asks the court to transfer the case to another district under the general transfer statutes, 28 U.S.C. §§ 1404(a) and 1406. The argument is usually that the relevant records or officials are located elsewhere.
Plaintiffs answer that the venue statute for suits against federal officers permits suit where the plaintiff lives and that the convenience of a litigant is a legitimate factor. Judges differ, and venue choice at the outset is part of strategy.
Defense six: mootness
The simplest defense is to decide the case. Once USCIS grants or denies the application, the controversy ends, and the court dismisses the case as moot. This is the most frequent way delay suits end.
The plaintiff gets what the complaint asked for, which is a decision, but the plaintiff does not get a favorable one by default. Mootness also affects recovery of attorney’s fees, which we explain in the article on costs.
How plaintiffs prepare
A complaint that anticipates these defenses is harder to dismiss. Good practice includes:
- Pleading both the mandamus and APA claims.
- Identifying the statute, regulation or reasonable-time rule that creates the duty.
- Framing the claim as a failure to decide, not a challenge to a discretionary outcome.
- Attaching or citing evidence of the timeline, comparators and harm.
- Choosing a venue that is clearly proper and defensible.
Even with careful drafting, results vary by judge. The goal is a complaint that gives the court no easy reason to look away.
Frequently asked questions
Will the government always move to dismiss? No. In many delay cases the agency decides the application soon after the complaint is served, which ends the dispute without a motion. When the government does file one, it typically does so near the end of the 60-day response period.
What does Rule 12(b)(1) mean? It is the federal rule that allows a defendant to argue the court lacks subject-matter jurisdiction. In delay cases the government often combines it with an argument that the statute commits the decision to agency discretion.
What if the motion to dismiss is granted? A lawyer can discuss options, which may include amending the complaint, appealing or filing again later if the problem was timing. The best choice depends on the court’s reasoning.
Does a dismissal bar a later suit? Not necessarily. A case dismissed as premature is often not a bar to a later suit once the delay has grown, but the effect depends on the wording of the order and on the claims involved.
Key Takeaways
- The government typically moves to dismiss under Rules 12(b)(1) and 12(b)(6) within 60 days of service.
- The main jurisdictional defense is 8 U.S.C. § 1252(a)(2)(B)(ii); plaintiffs answer that they challenge a failure to decide, not a discretionary decision.
- Plaintiffs plead both mandamus and APA claims so the case survives if one theory is rejected.
- The reasonableness defense is answered with TRAC evidence: published times, comparators and concrete harm.
- The most common ending is mootness, when USCIS decides the case after the suit is filed.
General information only, not legal advice. Immigration law and agency policy change often; confirm current rules before acting. Published October 1, 2026.