Justice THOMAS delivered the opinion of the Court.
This case requires us to decide whether two federal law enforcement agents are immune from suit for allegedly arresting a suspect in retaliation for his political speech, when the agents had probable cause to arrest the suspect for committing a federal crime.
On June 16, 2006, Vice President Richard Cheney visited a shopping mall in Beaver Creek, Colorado. A Secret Service protective detail accompanied the Vice President. Petitioners Gus Reichle and Dan Doyle were members of that detail.
Respondent Steven Howards was also at the mall. He was engaged in a cell phone conversation when he noticed the Vice President greeting members of the public. Agent Doyle overheard Howards say, during this conversation, "`I'm going to ask [the Vice President] how many kids he's killed today.'" Brief for Petitioners 4. Agent Doyle told two other agents what he had heard, and the three of them began monitoring Howards more closely.
Agent Doyle watched Howards enter the line to meet the Vice President. When Howards approached the Vice President, he told him that his "`policies in Iraq are disgusting.'" Ibid. The Vice President simply thanked Howards and moved along, but Howards touched the Vice President's shoulder as the Vice President departed.
Several agents observed Howards' encounter with the Vice President. The agents determined that Agent Reichle, who coordinated the protective intelligence team responsible for interviewing individuals suspected of violating the law, should question Howards. Agent Reichle had not personally heard Howards' comments or seen his contact with the Vice President, but Agent Doyle briefed Agent Reichle on what had happened.
Agent Reichle approached Howards, presented his badge and identified himself, and asked to speak with him. Howards refused and attempted to walk away. At that point, Agent Reichle stepped in front of Howards and asked if he had assaulted the Vice President. Pointing his finger at Agent Reichle, Howards denied assaulting the Vice President and told Agent Reichle, "if you don't want other people sharing their opinions, you should have him [the Vice President] avoid public places." Howards v. McLaughlin, 634 F.3d 1131, 1137 (C.A.10 2011) (internal quotation marks omitted). During this exchange,
The Secret Service transferred Howards to the custody of the local sheriff's department. Howards was charged by local officials with harassment in violation of state law. The charge was eventually dismissed.
Howards brought this action in the United States District Court for the District of Colorado under Rev. Stat. § 1979, 42 U.S.C. § 1983, and Bivens v. Six Unknown Fed. Narcotics Agents, 403 U.S. 388, 91 S.Ct. 1999, 29 L.Ed.2d 619 (1971).
Petitioners Reichle and Doyle moved for summary judgment on the ground that they were entitled to qualified immunity. The District Court denied the motion. See App. to Pet. for Cert. 46-61. On interlocutory appeal, a divided panel of the United States Court of Appeals for the Tenth Circuit affirmed in part and reversed in part. 634 F.3d 1131.
The Court of Appeals held that petitioners enjoyed qualified immunity with respect to Howards' Fourth Amendment claim. The court concluded that petitioners had probable cause to arrest Howards for making a materially false statement to a federal official in violation of 18 U.S.C. § 1001 because he falsely denied touching the Vice President. 634 F.3d, at 1142. Thus, the court concluded that neither Howards' arrest nor search incident to the arrest violated the Fourth Amendment.
However, the Court of Appeals denied petitioners qualified immunity from Howards' First Amendment claim. The court first determined that Howards had established a material factual dispute regarding whether petitioners were substantially motivated by Howards' speech when they arrested him. Id., at 1144-1145. The court then rejected petitioners' argument that, under this Court's decision in Hartman v. Moore, 547 U.S. 250, 126 S.Ct. 1695, 164 L.Ed.2d 441 (2006), probable cause to arrest defeats a First Amendment claim of retaliatory arrest. The court concluded that Hartman established such a rule only for retaliatory prosecution claims and, therefore, did not upset prior Tenth Circuit precedent clearly establishing that a retaliatory arrest violates the First Amendment even if supported by probable cause. 634 F.3d, at 1148.
Judge Paul Kelly dissented from the court's denial of qualified immunity. He would have held that when Howards was arrested, it was not clearly established that an arrest supported by probable cause could violate the First Amendment. In Judge Kelly's view, Hartman called into serious question the Tenth Circuit's prior precedent on retaliatory arrests. 634 F.3d, at 1151. He noted that other Circuits had applied Hartman to retaliatory arrests and that there was a "strong argument"
We granted certiorari on two questions: whether a First Amendment retaliatory arrest claim may lie despite the presence of probable cause to support the arrest, and whether clearly established law at the time of Howards' arrest so held. See 565 U.S. ___, 132 S.Ct. 815, 181 L.Ed.2d 525 (2011). If the answer to either question is "no," then the agents are entitled to qualified immunity. We elect to address only the second question. We conclude that, at the time of Howards' arrest, it was not clearly established that an arrest supported by probable cause could violate the First Amendment. We, therefore, reverse the judgment of the Court of Appeals denying petitioners qualified immunity.
Qualified immunity shields government officials from civil damages liability unless the official violated a statutory or constitutional right that was clearly established at the time of the challenged conduct. See Ashcroft v. al-Kidd, 563 U.S. ___, ___, 131 S.Ct. 2074, 2080, 179 L.Ed.2d 1149 (2011). In Pearson v. Callahan, 555 U.S. 223, 236, 129 S.Ct. 808, 172 L.Ed.2d 565 (2009), we held that courts may grant qualified immunity on the ground that a purported right was not "clearly established" by prior case law, without resolving the often more difficult question whether the purported right exists at all. Id., at 227, 129 S.Ct. 808. This approach comports with our usual reluctance to decide constitutional questions unnecessarily. Id., at 241, 129 S.Ct. 808; see also Camreta v. Greene, 563 U.S. ___, ___ _ ___, 131 S.Ct. 2020, 2030-2031, 179 L.Ed.2d 1118 (2011); al-Kidd, 563 U.S., at ___, 131 S.Ct., at 2080.
To be clearly established, a right must be sufficiently clear "that every `reasonable official would [have understood] that what he is doing violates that right.'" Id., at ___, 131 S.Ct., at 2078 (quoting Anderson v. Creighton, 483 U.S. 635, 640, 107 S.Ct. 3034, 97 L.Ed.2d 523 (1987)). In other words, "existing precedent must have placed the statutory or constitutional question beyond debate." 563 U.S., at ___, 131 S.Ct., at 2083. This "clearly established" standard protects the balance between vindication of constitutional rights and government officials' effective performance of their duties by ensuring that officials can "`reasonably ... anticipate when their conduct may give rise to liability for damages.'" Anderson, supra, at 639, 107 S.Ct. 3034 (quoting Davis v. Scherer, 468 U.S. 183, 195, 104 S.Ct. 3012, 82 L.Ed.2d 139 (1984)).
The "clearly established" standard is not satisfied here. This Court has never recognized a First Amendment right to be free from a retaliatory arrest that is supported by probable cause; nor was such a right otherwise clearly established at the time of Howards' arrest.
Howards contends that our cases have "settled" the rule that, "`as a general
We next consider Tenth Circuit precedent. Assuming arguendo that controlling Court of Appeals' authority could be a dispositive source of clearly established law in the circumstances of this case, the Tenth Circuit's cases do not satisfy the "clearly established" standard here.
Relying on DeLoach v. Bevers, 922 F.2d 618 (1990), and Poole v. County of Otero, 271 F.3d 955 (2001), the Court of Appeals concluded that, at the time of Howards' arrest, its precedent had clearly established the unlawfulness of an arrest in retaliation for the exercise of First Amendment rights, irrespective of probable cause. In DeLoach, a case involving both a retaliatory arrest and a retaliatory prosecution, the court held that "[a]n act taken in retaliation for the exercise of a constitutionally protected right is actionable under § 1983 even if the act, when taken for a different reason, would have been proper." 922 F.2d, at 620 (internal quotation marks omitted). In Poole, a subsequent retaliatory prosecution case, the court relied on DeLoach for the proposition that a plaintiff's illegal conduct is "not relevant to his First Amendment claim." 271 F.3d, at 961.
The Court of Appeals acknowledged that Poole was abrogated by this Court's subsequent decision in Hartman v. Moore, 547 U.S. 250, 126 S.Ct. 1695, 164 L.Ed.2d 441, which held that a plaintiff cannot state a claim of retaliatory prosecution in violation of the First Amendment if the charges were supported by probable cause. But the Court of Appeals determined that Hartman's no-probable-cause requirement did not extend to claims of retaliatory arrest and therefore did not disturb its prior precedent in DeLoach. Accordingly, the court concluded, "when Mr. Howards was arrested it was clearly established that an arrest made in retaliation of an individual's First Amendment rights is unlawful, even if the arrest is
We disagree. At the time of Howards' arrest, Hartman's impact on the Tenth Circuit's precedent governing retaliatory arrests was far from clear. Although the facts of Hartman involved only a retaliatory prosecution, reasonable officers could have questioned whether the rule of Hartman also applied to arrests.
Hartman was decided against a legal backdrop that treated retaliatory arrest and prosecution claims similarly. Hartman resolved a split among the Courts of Appeals about the relevance of probable cause in retaliatory prosecution suits, but some of the conflicting court of appeals cases involved both an arrest and a prosecution that were alleged to be retaliation for the exercise of First Amendment rights. See 547 U.S., at 255-256, 259, n. 6, 126 S.Ct. 1695 (citing Mozzochi v. Borden, 959 F.2d 1174 (C.A.2 1992); Singer v. Fulton Cty. Sheriff, 63 F.3d 110 (C.A.2 1995); Keenan v. Tejeda, 290 F.3d 252 (C.A.5 2002); Wood v. Kesler, 323 F.3d 872 (C.A.11 2003)). Those cases made no distinction between claims of retaliatory arrest and claims of retaliatory prosecution when considering the relevance of probable cause. See Mozzochi, supra, at 1179-1180; Singer, supra, at 120; Keenan, supra, at 260; Wood, supra, at 883. Indeed, the close relationship between retaliatory arrest and prosecution claims is well demonstrated by the Tenth Circuit's own decision in DeLoach. DeLoach, too, involved allegations of both retaliatory arrest and retaliatory prosecution, and the Tenth Circuit analyzed the two claims as one. 922 F.2d, at 620-621.
A reasonable official also could have interpreted Hartman's rationale to apply to retaliatory arrests. Hartman first observed that, in retaliatory prosecution cases, evidence showing whether there was probable cause for the charges would always be "available and apt to prove or disprove retaliatory causation." 547 U.S., at 261, 126 S.Ct. 1695. In this Court's view, the presence of probable cause, while not a "guarantee" that retaliatory motive did not cause the prosecution, still precluded any prima facie inference that retaliatory motive was the but-for cause of the plaintiff's injury. Id., at 265, 126 S.Ct. 1695. This was especially true because, as Hartman next emphasized, retaliatory prosecution claims involve particularly attenuated causation between the defendant's alleged retaliatory animus and the plaintiff's injury. Id., at 259-261, 126 S.Ct. 1695. In a retaliatory prosecution case, the key defendant is typically not the prosecutor who made the charging decision that injured the plaintiff, because prosecutors enjoy absolute immunity for their decisions to prosecute. Rather, the key defendant is the person who allegedly prompted the prosecutor's decision. Thus, the intervening decision of the third-party prosecutor widens the causal gap between the defendant's animus and the plaintiff's injury. Id., at 261-263, 126 S.Ct. 1695.
Like retaliatory prosecution cases, evidence of the presence or absence of probable cause for the arrest will be available in virtually every retaliatory arrest case. Such evidence could be thought similarly fatal to a plaintiff's claim that animus caused his arrest, given that retaliatory arrest cases also present a tenuous causal connection between the defendant's alleged animus and the plaintiff's injury. An officer might bear animus toward the content of a suspect's speech. But the officer may decide to arrest the suspect because his speech provides evidence of a crime or suggests a potential threat. See, e.g., Wayte v. United States, 470 U.S. 598, 612-613, 105 S.Ct. 1524, 84 L.Ed.2d 547 (1985) (noting that letters of protest written to
To be sure, we do not suggest that Hartman's rule in fact extends to arrests. Nor do we suggest that every aspect of Hartman's rationale could apply to retaliatory arrests. Hartman concluded that the causal connection in retaliatory prosecution cases is attenuated because those cases necessarily involve the animus of one person and the injurious action of another, 547 U.S., at 262, 126 S.Ct. 1695, but in many retaliatory arrest cases, it is the officer bearing the alleged animus who makes the injurious arrest. Moreover, Hartman noted that, in retaliatory prosecution cases, the causal connection between the defendant's animus and the prosecutor's decision is further weakened by the "presumption of regularity accorded to prosecutorial decisionmaking." Id., at 263, 126 S.Ct. 1695. That presumption does not apply here. Nonetheless, the fact remains that, for qualified immunity purposes, at the time of Howards' arrest it was at least arguable that Hartman's rule extended to retaliatory arrests.
Decisions from other Federal Courts of Appeals in the wake of Hartman support this assessment. Shortly before Howards' arrest, the Sixth Circuit held that Hartman required a plaintiff alleging a retaliatory arrest to show that the defendant officer lacked probable cause. See Barnes v. Wright, 449 F.3d 709, 720 (2006) (reasoning that the Hartman "rule sweeps broadly"). That court's treatment of Hartman confirms that the inapplicability of Hartman to arrests would not have been clear to a reasonable officer when Howards was arrested. Moreover, since Howards' arrest, additional Courts of Appeals have concluded that Hartman's no-probable-cause requirement extends to retaliatory arrests. See, e.g., McCabe v. Parker, 608 F.3d 1068, 1075 (C.A.8 2010); Phillips v. Irvin, 222 Fed.Appx. 928, 929 (C.A.11 2007) (per curiam). As we have previously observed, "[i]f judges thus disagree on a constitutional question, it is unfair to subject police to money damages for picking the losing side of the controversy." Wilson v. Layne, 526 U.S. 603, 618, 119 S.Ct. 1692, 143 L.Ed.2d 818 (1999).
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Hartman injected uncertainty into the law governing retaliatory arrests, particularly in light of Hartman's rationale and
The judgment of the Court of Appeals is reversed, and the case is remanded for further proceedings consistent with this opinion.
It is so ordered.
Justice KAGAN took no part in the consideration or decision of this case.
Justice GINSBURG, with whom Justice BREYER joins, concurring in the judgment.
Were defendants ordinary law enforcement officers, I would hold that Hartman v. Moore, 547 U.S. 250, 126 S.Ct. 1695, 164 L.Ed.2d 441 (2006), does not support their entitlement to qualified immunity. Hartman involved a charge of retaliatory prosecution. As the Court explains, the defendant in such a case cannot be the prosecutor who made the decision to pursue charges. See ante, at 2095-2096; Hartman, 547 U.S., at 262, 126 S.Ct. 1695 (noting that prosecutors are "absolutely immune from liability for the decision to prosecute"). Rather, the defendant will be another government official who, motivated by retaliatory animus, convinced the prosecutor to act. See ibid.; ante, at 2095-2096. Thus, the "causal connection [a plaintiff must establish in a retaliatory-prosecution case] is not merely between the retaliatory animus of one person and that person's own injurious action, but between the retaliatory animus of one person and the action of another." Hartman, 547 U.S., at 262, 126 S.Ct. 1695. This "distinct problem of causation" justified the absence-of-probable-cause requirement we recognized in Hartman. Id., at 263, 126 S.Ct. 1695 (Proof of an absence of probable cause to prosecute is needed "to bridge the gap between the nonprosecuting government agent's motive and the prosecutor's action."). See also id., at 259, 126 S.Ct. 1695 ("[T]he need to prove a chain of causation from animus to injury, with details specific to retaliatory-prosecution cases, ... provides the strongest justification for the no-probable-cause requirement." (emphasis added)).
A similar causation problem will not arise in the typical retaliatory-arrest case. Unlike prosecutors, arresting officers are not wholly immune from suit. As a result, a plaintiff can sue the arresting officer directly and need only show that the officer (not some other official) acted with a retaliatory motive. Because, in the usual retaliatory-arrest case, there is no gap to bridge between one government official's animus and a second government official's action, Hartman's no-probable-cause requirement is inapplicable.
Nevertheless, I concur in the Court's judgment. Officers assigned to protect public officials must make singularly swift, on the spot, decisions whether the safety of the person they are guarding is in jeopardy. In performing that protective function, they rightly take into account words spoken to, or in the proximity of, the person whose safety is their charge. Whatever the views of Secret Service Agents Reichle and Doyle on the administration's policies in Iraq, they were duty bound to take the content of Howards' statements into account in determining whether he posed an immediate threat to the Vice President's physical security. Retaliatory animus cannot be inferred from the assessment