The right to criticize government officers — to record police conduct, to petition local officials, to organize against a municipal employer — sits at the core of First Amendment protection. When those officers respond by arresting or prosecuting the speaker, the resulting § 1983 claim is among the most vigorously litigated in civil rights practice. The Supreme Court's 2019 decision in Nieves v. Bartlett restructured the pleading and proof framework for retaliatory-arrest claims, and the Court's 2024 per curiam in Gonzalez v. Trevino has since clarified — and slightly broadened — the path plaintiffs must navigate. Practitioners who misread either decision will not survive summary judgment.
I. The General Framework Before Nieves
First Amendment retaliation claims require a plaintiff to show: (1) she engaged in constitutionally protected conduct; (2) the defendant took adverse action against her; and (3) the adverse action was causally connected to the protected conduct — i.e., the retaliation was a substantial or motivating factor, and the defendant would not have taken the action but for the retaliatory animus. Mt. Healthy City School Dist. Bd. of Ed. v. Doyle, 429 U.S. 274, 287 (1977).
This two-step Mt. Healthy framework governs ordinary retaliation claims — a public employee fired for union activity, a contractor terminated for whistleblowing. But retaliatory arrest and retaliatory prosecution claims present structural complications that the Mt. Healthy framework does not elegantly resolve, because the existence of probable cause to arrest or charge tends to obscure the causation inquiry.
II. Hartman v. Moore and the Retaliatory Prosecution Rule
In Hartman v. Moore, 547 U.S. 250 (2006), the Supreme Court held that a plaintiff alleging First Amendment retaliatory prosecution under § 1983 or Bivens must plead and prove the absence of probable cause for the underlying criminal charges. Id. at 252. The Court's reasoning was causation-driven: where the retaliatory actor is not the prosecutor but an investigator who influenced the charging decision, the causal chain from retaliatory animus to criminal prosecution requires proof that the prosecution would not have occurred without the improper motive. Demonstrating no probable cause supplies the evidentiary bridge to establish that causal link. Id. at 259–64.
Hartman governs retaliatory prosecution claims. Its no-probable-cause rule is a pleading element, not merely an evidentiary matter.
III. Nieves v. Bartlett: Extending the Rule to Retaliatory Arrests
In Nieves v. Bartlett, 587 U.S. 391 (2019), the Supreme Court extended the Hartman no-probable-cause requirement to retaliatory arrest claims. Russell Bartlett was arrested by Alaska state troopers during a youth event after a verbal altercation. He claimed the arrest was in retaliation for his refusal to speak to the officers earlier and his later confrontation with them. The Ninth Circuit had held that probable cause did not automatically defeat a retaliatory arrest claim.
The Supreme Court reversed in a 6-3 opinion by Chief Justice Roberts. The holding: "a plaintiff brings a retaliatory arrest claim must plead and prove the absence of probable cause for the arrest." Id. at 402. If the officer had probable cause to arrest for any offense, the retaliatory arrest claim fails as a matter of law, unless the plaintiff can satisfy the exception described below. Id.
The Nieves majority reasoned that the presence of probable cause powerfully undercuts the causal inference that retaliation — rather than law enforcement judgment — was the but-for cause of the arrest. Probable cause is highly probative: its presence suggests the arrest would have occurred regardless; its absence suggests it would not.
The Nieves Exception
The Court recognized one narrow exception to the no-probable-cause rule: where the plaintiff can demonstrate through "objective evidence" that the plaintiff "was arrested when otherwise similarly situated individuals not engaged in the same sort of protected speech had not been," the probable-cause bar does not apply. Nieves, 587 U.S. at 407. The Court's example was illuminating — jaywalking, technically a criminal offense, is virtually never enforced; an officer who arrests only the critic of the police department for jaywalking cannot shelter behind probable cause. Id.
IV. Gonzalez v. Trevino: Clarifying the Exception
The Fifth Circuit applied Nieves restrictively, holding that the exception could be satisfied only by specific examples of "identifiable people who engaged in the same criminal conduct" but were not arrested. In a per curiam opinion, the Supreme Court reversed in Gonzalez v. Trevino, 602 U.S. 653 (2024).
Sandra Gonzalez was a city council member in Castle Hills, Texas, who organized a petition to remove the city manager. After the petition was submitted, she was arrested for mishandling a government document — a charge based on an arguable technical violation. She did not have comparative examples of other individuals arrested for the same offense; instead, she submitted a statistical survey showing that no one had ever been charged under the statute for similar conduct.
The Court held that objective evidence sufficient to satisfy the Nieves exception need not take the form of specific comparators. It must be objective — not merely the subjective retaliatory motive of the arresting officer — but it can include statistical evidence, charging patterns, surveys of prosecutorial practice, or other data demonstrating that arrests of this sort simply do not happen absent special circumstances. The Fifth Circuit's demand for "virtually identical and identifiable comparators" was "overly cramped." Gonzalez, 602 U.S. at 659.
Justice Alito, concurring, emphasized that the Nieves exception remains narrow and that the Mt. Healthy burden-shifting framework does not come into play unless and until the plaintiff has satisfied the exception. Courts should not conflate the exception inquiry with the broader Mt. Healthy analysis. Id. (Alito, J., concurring).
Justice Thomas dissented alone, arguing that the exception created in Nieves — and expanded in Gonzalez — has no basis in the common law or prior First Amendment precedents.
V. Pleading Framework Post-Nieves and Gonzalez
Plaintiffs' counsel confronting a retaliatory arrest claim where probable cause existed should approach pleading and discovery in the following sequence:
Step 1: Can you negate probable cause?
Where the arrest lacked probable cause as to every offense the officer cited, the Nieves bar is not triggered, and the claim proceeds under the standard Mt. Healthy framework. Invest in the probable cause analysis before assuming the harder path. Arrests for minor offenses — disorderly conduct, obstruction — frequently lack supporting facts. Review the arrest report, body-camera footage, and witness statements critically.
*Step 2: Can you satisfy the Nieves exception through objective evidence?*
If probable cause existed, you must satisfy the exception. After Gonzalez, objective evidence includes:
- Statistical surveys of arrest frequency under the charged statute.
- Records of how the arresting agency has applied the same statute to other individuals.
- Evidence that the specific conduct for which the plaintiff was arrested is routinely tolerated unless the actor is engaged in protected speech.
- Documents or communications reflecting the officers' awareness of the plaintiff's protected activity immediately preceding the arrest.
Note what the exception does not permit: purely subjective evidence of the officer's retaliatory animus, absent objective corroboration. A witness who heard the officer say "bet you wish you'd kept your mouth shut" is helpful but cannot carry the Nieves exception by itself.
*Step 3: After satisfying the exception, apply Mt. Healthy.*
Once the exception is established, Mt. Healthy governs: the plaintiff must show protected speech was a substantial or motivating factor, and the burden shifts to the defendant to demonstrate the arrest would have been made regardless. At this stage, the officer's statements, prior history with the plaintiff, and the timing between the protected speech and the arrest all become central.
VI. Retaliatory Prosecution: The Hartman Framework Persists
Nieves did not disturb Hartman's framework for retaliatory prosecution claims. Key differences in the prosecution context:
Prosecutorial immunity. The prosecutor who makes the charging decision has absolute immunity. Imbler v. Pachtman, 424 U.S. 409 (1976). The § 1983 defendant will be the investigating officer or government official who influenced the prosecutorial decision — requiring proof that the defendant's retaliatory animus caused the prosecution that would not otherwise have occurred. This extra-causal link is why Hartman imposed the no-probable-cause requirement.
*The Gonzalez question for prosecutions. Some courts have begun asking whether Gonzalez's broadening of the objective-evidence exception applies equally to retaliatory prosecution cases. The better argument is that it does — the Gonzalez Court addressed the Nieves* exception without limiting its reasoning to arrests — but this point is not yet resolved.
VII. Practice Traps
Don't conflate the exception with the merits. The Nieves exception must be established with objective evidence at the pleading or summary judgment stage before the plaintiff is entitled to full Mt. Healthy burden-shifting analysis. Courts that see only motive evidence, without objective indicia of selective enforcement, will grant summary judgment without reaching the motivating-factor question.
Discovery focus. In Gonzalez-type situations, issue Rule 34 requests for: charging statistics for the specific statute; the officer's prior contacts with the plaintiff; all communications between officers in the period preceding the arrest; and body-camera footage showing the sequence from protected speech to arrest.
Municipal liability. A Monell claim for retaliatory arrest must connect the individual officer's conduct to a district-wide policy or custom. Where the police department has no training on First Amendment limits, or where supervisors have ratified prior retaliatory arrests, the Monell theory is viable alongside the individual-capacity claim.
Talk to Yates Anderson
If you are litigating a matter in this area — or weighing whether to — the working analysis above only goes so far. Request a case evaluation and a Yates Anderson attorney will respond within one business day.
Informational only. Not legal advice. No attorney-client relationship is created by reading this post. Consult a licensed attorney in your jurisdiction.