Murthy v. Missouri, 603 U.S. 43

Background

Major social‑media platforms (Facebook, Twitter, YouTube) long applied misinformation/content‑moderation policies and acted against COVID‑19 and election‑related posts beginning in 2020.
Federal actors (White House staff, Surgeon General, CDC, FBI, CISA) repeatedly communicated with platforms in 2020–2022 about misinformation; some communications were public and some private.
Plaintiffs were two States (Missouri, Louisiana) and five individual social‑media users who alleged Government coercion or significant encouragement of platform moderation and sued many Executive Branch officials and agencies seeking a broad injunction.
The district court entered a preliminary injunction, finding likely Government coercion/significant encouragement that transformed private moderation into state action; the Fifth Circuit largely affirmed and framed an injunction barring defendants from coercing or significantly encouraging platforms to suppress protected speech.
The Supreme Court granted certiorari and reversed solely on Article III standing grounds, holding no plaintiff showed a concrete, traceable, and redressable risk of future injury sufficient to support injunctive relief; the Court observed platforms had independent incentives and often acted before Government communications, and only one plaintiff (Hines) made a comparatively stronger but still insufficient showing.

Issues

Issue	Plaintiff's Argument	Defendant's Argument	Held
Article III standing to enjoin Government officials for third‑party platform moderation	Past censorship of plaintiffs was caused by Government pressure and creates a substantial risk of future, Government‑induced moderation	Injuries depend on independent third‑party (platform) decisions; plaintiffs’ future‑injury allegations are speculative	No plaintiff established standing; Court lacked jurisdiction to reach merits
Traceability of past moderation to Government defendants	Government coercion/significant encouragement caused platforms’ moderation decisions	Platforms had preexisting policies and independent incentives; many moderation acts predated Government contacts	Most plaintiffs failed to show traceability; only Hines had tenuous links, but not enough to predict future Government‑caused harm
Redressability: would injunctive relief against officials prevent future moderation	An injunction barring Government pressure would reduce platform censorship	Platforms can and do enforce policies independently; an injunction against officials would likely not change platforms’ conduct	Redressability not established; injunction unlikely to stop platforms from enforcing (including policies originally adopted under prior pressure)
"Right to listen" / third‑party standing (individuals and States)	Listeners and States have First Amendment interest in receiving speech and may sue to vindicate that interest	Theory is overbroad; plaintiffs lack concrete, particularized injury and States cannot sue as parens patriae against the Federal Government	Rejected: plaintiffs failed to show concrete harm tied to specific speakers/topics; States lack standing on that theory

Key Cases Cited

Raines v. Byrd, 521 U.S. 811 (Article III standing requires plaintiff to establish personal stake)
Clapper v. Amnesty Int’l USA, 568 U.S. 398 (future‑injury standing requires substantial risk, not conjecture)
Simon v. Eastern Ky. Welfare Rights Org., 426 U.S. 26 (injury caused by independent third parties is generally not redressable)
O’Shea v. Littleton, 414 U.S. 488 (forward‑looking relief requires a real and immediate threat of repeated injury)
TransUnion LLC v. Ramirez, 594 U.S. 413 (standing is not dispensed in gross; plaintiffs must show standing for each claim/defendant)
Department of Commerce v. New York, 588 U.S. 752 (third‑party reactions may suffice where predictable and supported by evidence)
Lujan v. Defenders of Wildlife, 504 U.S. 555 (standing elements and evidentiary burdens at pleading/discovery stages)
Kleindienst v. Mandel, 408 U.S. 753 (First Amendment right to receive information requires a concrete, specific connection to the speaker)
Los Angeles v. Lyons, 461 U.S. 95 (speculation is insufficient to establish imminent future injury)
Massachusetts v. EPA, 549 U.S. 497 (redressability may be satisfied even when relief only partially remedies injury)
Friends of the Earth, Inc. v. Laidlaw Env’t Servs., 528 U.S. 167 (past exposure to illegal conduct can predict future injury for injunctive relief)
Winter v. Natural Res. Def. Council, Inc., 555 U.S. 7 (preliminary injunction standard; plaintiffs must show likelihood of success on the merits)
Bantam Books, Inc. v. Sullivan, 372 U.S. 58 (government may not coerce private intermediaries into suppressing speech)
National Rifle Ass’n v. Vullo, 602 U.S. 175 (government cannot indirectly accomplish what it is barred from doing directly)