Federal Jurisdiction and Diversity – Study Notes

Overview: Federal civil procedure jurisdiction and strategic considerations

  • Two big power structures in civil procedure:
    • Personal jurisdiction: power over the defendant (power over the person).
    • Subject matter jurisdiction: power of the court to hear the type of case (power of the case).
  • Core question in each: Can the court hear and decide this case with enforceable effect?
  • Topics move from a heavy, common-law, facts-and-claims framework to more statutory, rule-driven analysis as you shift from personal jurisdiction to subject matter jurisdiction and federal court structure.

The constitutional foundation and authority to hear cases

  • Article III, Section 2 of the U.S. Constitution establishes the judicial power and, with it, the constitutionally constrained power of federal courts to hear cases.
  • The phrase “cases or controversies” limits what federal courts can adjudicate. This drives what counts as original jurisdiction in federal courts.
  • The federal judiciary’s power is designed to preserve federalism: federal courts should not overwhelm state courts or take away state sovereignty where not authorized by the Constitution.
  • The Court distinguishes between power to hear a case (subject matter jurisdiction) and power to adjudicate a given party (personal jurisdiction).

The three key jurisdictional categories in this course

  • Federal civil procedure focuses on three main categories of original jurisdiction:
    • Federal question cases: arising under the laws of the United States.
    • Diversity jurisdiction: between citizens of different states (and sometimes foreign entities/aliens).
    • Alienage jurisdiction: diversity-type jurisdiction involving foreign citizens (aliens).
  • We’ll note that there are nine types of case or controversy contemplated by Article III, but the course concentrates on these three core mechanisms.
  • Appellate jurisdiction is also discussed: some cases reach the Supreme Court via appellate paths that could not have had original jurisdiction in federal court.

Personal jurisdiction vs. subject matter jurisdiction (recap)

  • Personal jurisdiction questions:
    • Can the state exert power over an out-of-state defendant? If the defendant objects, the court must analyze due process limits.
  • Subject matter jurisdiction questions:
    • Does the federal court have authority to decide this case based on its attributes (not based on who the parties are)?
    • Challenges to subject matter jurisdiction can be raised at any time by any party, or by the court itself. It is not waived by failure to raise early.
    • Rule: subject matter jurisdiction is not presumed to be proper; it must be properly pled, and failure can lead to dismissal (e.g., a 12(b)(1) motion).
  • The distinction matters: even if a defendant consents to a forum, a federal court still requires proper subject matter jurisdiction to hear the case.

Original vs appellate jurisdiction in federal courts

  • Original jurisdiction: power to hear a case at its inception (trial level) in federal court.
  • Appellate jurisdiction: power to hear matters on appeal, after trial has occurred, often with different rules and standards.
  • The Supreme Court sometimes has appellate jurisdiction over state-law cases when a constitutional question is involved, even if the case did not have original federal-court jurisdiction.
  • The concept of subject matter jurisdiction is separate from the path a case takes on appeal; even if a case ends up in federal court via removal or other mechanisms, its original jurisdiction determines if it could have started there.

Nine types of cases/controversies vs the three we focus on

  • Congress and the Constitution identify nine potential categories of cases; the course focuses primarily on three:
    • 1) Cases arising under federal law (federal question).
    • 2) Diversity: between citizens of different states and, in some formulations, between a US citizen and a foreign citizen (alienage).
    • 3) Alienage jurisdiction (a subset or related concept to diversity, involving foreign citizens).
  • Other types (e.g., admiralty) exist but aren’t the main focus here; they can be studied if relevant to a particular case.

The federal question jurisdiction (arising under federal law)

  • Concept: When a plaintiff’s claim arises under federal law, the federal courts have original jurisdiction.
  • This is grounded in the idea that federal courts should interpret and enforce federal statutes and constitutional provisions.
  • In a federal question case, state courts could also hear the case if they have concurrent jurisdiction, but the federal court’s role is to interpret federal law.
  • Example implications: If a case involves a federal statute or a constitutional issue, it may be a federal question case.

Diversity jurisdiction: structure, purpose, and thresholds

  • Core idea: Diversity jurisdiction exists where the parties are citizens of different states (and sometimes aliens), and the amount in controversy exceeds a specified threshold.
  • Statutory anchor: 28 U.S.C. § 1332(a) provides the framework for diversity and alienage jurisdiction.
    • 28extU.S.C.ext§1332(a):extThedistrictcourtsshallhaveoriginaljurisdictionofallcivilactionswherethematterincontroversyexceedsthesumorvalueof75,000,extexclusiveofinterestandcosts,andisbetweencitizensofdifferentstatesorbetweenacitizenofastateandaforeignstateorcitizenthereof.28 ext{ U.S.C. } ext{§ }1332(a): ext{The district courts shall have original jurisdiction of all civil actions where the matter in controversy exceeds the sum or value of }75{,}000, ext{ exclusive of interest and costs, and is between citizens of different states or between a citizen of a state and a foreign state or citizen thereof.}
  • The purpose: to prevent hometown bias and to ensure a neutral federal forum for certain disputes, while preserving state judicial function and federalism balance.
  • Two key questions for §1332 diversity:
    • What is the amount in controversy as of filing? (good-faith estimate) ext{amount in controversy} > 75{,}000
    • Are the parties diverse in citizenship? (complete diversity standard)
  • Concept of “complete diversity” (Strawbridge v. Curtis): all plaintiffs must be diverse from all defendants; no plaintiff may share a state with any defendant. This is stricter than a looser, mere presence of a nonmatching party.
    • Strawberry vs. Curtis principle: if any plaintiff and defendant share a state, the case fails to meet complete diversity and cannot be heard in federal court under traditional diversity rules.
  • The practical effect of complete diversity: in a case with many plaintiffs/defendants, every plaintiff must be from a different set of states than every defendant.

Domicile, citizenship, and the mechanics of diversity

  • Citizenship for individuals under §1332 is based on domicile, not simply residence:
    • Domicile = the true fixed permanent home and principal establishment to which there is intent to return; shorthand: “where you live and intend to remain.”
    • A person has a domicile at all times; there is no moment when you lack a domicile. If you move, you may change domicile, but you retain the prior domicile until you establish a new one with intent to remain.
    • Domicile is measured as of the filing date of the suit; the plaintiff and defendant’s domiciles as of filing determine diversity.
  • The domicile inquiry and evidence: proof of intent to remain is inferred from facts (e.g., licenses, voter registration, leases, car registrations, etc.). Direct knowledge of intent is rarely available; courts infer intent from evidence.
  • For individuals, diversity requires their domicile to be in different states. If a person moves, their current domicile at filing matters; past domiciles are material only if they establish intent to remain at filing.
  • Special nuances:
    • Children and domiciliaries: generally, children do not have separate domiciliaries; their domicile is tied to their parents’ domicile for purposes of diversity.
    • Military deployments and similar circumstances can complicate domicile and intent; courts infer domicile from the circumstances and the parents’ domicile in cases involving minors.
  • The role of