The Eleventh Amendment to the U.S. Constitution bars private individuals from suing a state in federal court without the state’s consent. That is the short version, and it is the version most summaries stop at. The longer version matters more: the Supreme Court has read the amendment far more broadly than its one-sentence text, turning it into a general doctrine of state sovereign immunity that reaches beyond federal court, beyond out-of-state plaintiffs, and into most private lawsuits against state governments today.
What the Amendment Actually Says
The text is a single sentence: “The Judicial power of the United States shall not be construed to extend to any suit in law or equity, commenced or prosecuted against one of the United States by Citizens of another State, or by Citizens or Subjects of any Foreign State.”1Congress.gov. U.S. Constitution – Eleventh Amendment
Read literally, it blocks only two categories of plaintiffs from federal court: residents of a different state and foreign nationals. A state’s own citizens would seem free to sue.
The Supreme Court closed that gap in Hans v. Louisiana (1890), holding that a state’s own citizens also cannot sue it in federal court, even on a federal constitutional claim.2Cornell Law Institute. Hans v. State of Louisiana After Hans, the amendment functions less like a jurisdictional rule and more like a broad principle: no private party sues a state in federal court unless a recognized exception applies.
Why It Was Ratified
The amendment was a direct reaction to Chisholm v. Georgia (1793). The executor of a South Carolina merchant’s estate sued Georgia in federal court to collect a debt. Georgia refused to appear, arguing it could not be sued without its consent. The Supreme Court ruled against Georgia, holding that Article III gave federal courts jurisdiction over suits between a state and citizens of another state.3Justia. Chisholm v. Georgia
States with unpaid Revolutionary War debts saw a wave of creditor lawsuits coming.4U.S. Capitol – Visitor Center. Resolution Proposing the Eleventh Amendment, January 14, 1794 The response was fast. Congress passed the amendment in 1794 and the states ratified it by February 1795.5National Archives. The Constitution: Amendments 11-27
Who Counts as “the State”
Not every government body gets the shield. The question is whether the entity functions as an “arm of the state.” State agencies, state departments, and state-run universities usually qualify, because a judgment against them would come out of the state treasury.6Constitution Annotated. Amdt11.5.3 Suits Against States Sue a state transportation department and the court treats it as a suit against the state itself.
When the entity is less obvious, courts weigh how much control the state exercises, how state law classifies the entity, and, most heavily, whether the state is on the hook for its debts. Treasury exposure carries the most weight because protecting the state treasury is the point of the immunity.
Cities, counties, and other local governments do not share this protection. The Supreme Court has consistently refused to extend Eleventh Amendment immunity to local political subdivisions, even when those bodies exercise government power or enjoy immunity under state law.6Constitution Annotated. Amdt11.5.3 Suits Against States A city police department or county board can be sued in federal court for constitutional violations. A state police agency generally cannot.
It Reaches State Court Too
A common assumption is that sovereign immunity ends at the federal courthouse door. It does not. In Alden v. Maine (1999), the Supreme Court held that states are also immune from private lawsuits in their own state courts when Congress tries to authorize those suits using its ordinary legislative powers.7Justia. Alden v. Maine State employees in that case had tried to sue Maine in state court for federal overtime violations after the federal case was dismissed on immunity grounds. The Court blocked the state-court suit too, treating sovereign immunity as a fundamental attribute of statehood that predates the Constitution.
Congress cannot reroute private claims against states into state court as a workaround. Exposing states to private suits requires a constitutional footing stronger than Article I authority like the Commerce Clause.
The Exceptions That Let Suits Go Forward
The immunity is broad, not absolute. Several recognized paths bring a state into court.
State Consent
A state can waive its immunity by agreeing to be sued. The waiver has to be unambiguous. Courts will not find waiver by implication or from general participation in a federal program. Many states have passed tort claims acts or similar statutes allowing certain categories of lawsuits, and those statutes usually cap damages and impose short notice-of-claim deadlines, sometimes as brief as six months.
Suing an Official Under Ex parte Young
When a state official is actively violating federal law, a plaintiff can name that official as the defendant and ask a court to order the violation stopped. The doctrine comes from Ex parte Young (1908) and rests on a legal fiction: an official who breaks federal law is not truly acting for the state, so the suit is against the individual.8Justia. Ex Parte Young
The limit is that this route only produces forward-looking relief. A court can order the official to stop enforcing an unconstitutional policy going forward. It cannot award money damages for past harm. If compensation from the state treasury is the goal, Ex parte Young will not deliver it.
Personal-Capacity Suits Against Officials
An official can also be sued in their individual capacity for money damages. The Eleventh Amendment does not block those cases because any judgment comes from the official personally, not the treasury. The tradeoff is qualified immunity, which shields the official unless the right violated was “clearly established” at the time. That standard is a high bar, and courts regularly dismiss cases where the specific violation had not been squarely addressed in earlier decisions.
Congressional Abrogation Under the Fourteenth Amendment
Congress can override state immunity, but only when it legislates under Section 5 of the Fourteenth Amendment to enforce that amendment’s guarantees. The Supreme Court confirmed this in Fitzpatrick v. Bitzer (1976), reasoning that the Fourteenth Amendment, ratified after the Eleventh, altered the state-federal balance.9Legal Information Institute. Abrogation of State Sovereign Immunity
Article I powers will not do. In Seminole Tribe of Florida v. Florida (1996), the Court held that the Commerce Clause and other Article I authorities cannot authorize private suits against unconsenting states, however clearly Congress says so.
Even under the Fourteenth Amendment, the abrogation must show “congruence and proportionality” between the constitutional violation targeted and the remedy Congress imposes.10Congress.gov. Amdt14.S5.4 Modern Doctrine on Enforcement Clause The test has real bite. The Court struck down damages suits by state employees under Title I of the Americans with Disabilities Act in Board of Trustees of the University of Alabama v. Garrett (2001) for lack of a sufficient record of state disability discrimination.11Legal Information Institute. Board of Trustees of Univ. of Ala. v. Garrett Three years later, in Tennessee v. Lane, it upheld Title II of the same statute as applied to courthouse access.12Legal Information Institute. Tennessee v. Lane The same statute can abrogate immunity for some claims but not others.
Bankruptcy
Bankruptcy proceedings occupy their own space. In Central Virginia Community College v. Katz (2006), the Supreme Court held that the Bankruptcy Clause itself subordinates state sovereign immunity in the bankruptcy context.13Justia. Central Va. Community College v. Katz The Court read the ratification of that clause as an agreement by the states not to assert immunity against the core functions of bankruptcy courts. A bankruptcy trustee can, for example, recover preferential transfers made to a state agency.
Who Is Not Blocked by the Amendment
The Eleventh Amendment only restricts private lawsuits. The federal government can sue a state in federal court without any immunity barrier, and one state can sue another, typically under the Supreme Court’s original jurisdiction. Sovereign-versus-sovereign disputes sit outside the amendment entirely, which is part of why the federal government often steps in as a plaintiff in civil rights enforcement cases where private plaintiffs would be barred.
What This Means for Suing a State
The first question in any lawsuit against a state is not whether the state did something wrong. It is whether an exception opens the courthouse door. A claim for money damages against a state agency under a federal statute passed under Article I will usually be dismissed before the merits are ever addressed. The same underlying grievance may still be viable as an injunction against a named official, as a personal-capacity damages claim, as a suit against a city or county entity that shares no immunity, or under a state tort claims act with its own procedures and deadlines. Missing the immunity analysis at the front end can mean years of litigation ending in dismissal, with no chance to refile if a deadline has run.