2025 in Review: United States

Key Takeaways

• Supreme Court rejects minimum‑contacts test for FSIA jurisdiction.
• D.C. Circuit treats arbitration‑agreement existence as jurisdictional.
• Second Circuit bars U.S. courts from vacating foreign‑seat awards.
• Spain petition highlights split on sovereign consent to arbitration.
• Decisions tighten limits on U.S. enforcement of foreign awards.

Summary

International arbitration in the United States remained relatively quiet in 2025, but the Supreme Court issued a unanimous opinion that the Foreign Sovereign Immunities Act (FSIA) does not require a separate minimum‑contacts analysis for personal jurisdiction. The D.C. Circuit clarified that challenges to the existence of an arbitration agreement are jurisdictional, while disputes over its scope belong to the merits. The Second Circuit reinforced that U.S. courts cannot vacate foreign‑seat awards, limiting secondary judicial review. A pending petition by Spain underscores a circuit split over sovereign consent to arbitration, setting the stage for 2026.

Pulse Analysis

The 2025 Supreme Court decision on the Foreign Sovereign Immunities Act marks a pivotal shift in how U.S. courts assess personal jurisdiction over foreign states. By explicitly rejecting an implied minimum‑contacts requirement, the Court aligned statutory language with practice, giving litigants clearer pathways to enforce arbitral awards under the FSIA’s arbitration exception. This clarification reduces uncertainty for investors seeking redress in U.S. forums and signals to sovereigns that immunity waivers are narrowly defined, prompting more careful treaty drafting and consent negotiations.

At the appellate level, the D.C. Circuit’s distinction between jurisdictional and merits questions further refines enforcement mechanics. By treating the existence of an arbitration agreement as a jurisdictional threshold, courts can swiftly determine whether to proceed, while reserving substantive disputes for later merit review. The Second Circuit’s affirmation that U.S. courts lack authority to vacate foreign‑seat awards under the New York Convention solidifies the secondary role of U.S. courts, preserving the finality of foreign arbitral decisions and discouraging parallel annulment proceedings. Together, these rulings create a more disciplined framework for cross‑border arbitration enforcement.

The unresolved Spain petition adds a layer of complexity, highlighting a split among circuits on whether sovereign consent to arbitration is a jurisdictional prerequisite. With European states filing amicus briefs, the issue has significant implications for investor‑state treaty enforcement and the balance of power between domestic courts and international arbitration tribunals. As the case moves toward a Supreme Court resolution in 2026, practitioners should monitor the outcome closely, as it may redefine consent standards and influence future treaty negotiations worldwide.