Baldwin v. Iowa State Traveling Men's Association
United States Supreme Court
283 U.S. 522 (1931)
Baldwin (plaintiff) sued the Iowa State Traveling Men's Association (defendant) in Missouri, and the case was removed to federal court there. The Association appeared and unsuccessfully challenged personal jurisdiction, then chose not to defend on the merits, letting judgment be entered against it. The Association later attacked that same Missouri judgment in an Iowa federal court, again arguing lack of personal jurisdiction. The Iowa court agreed and dismissed, and the Eighth Circuit affirmed; Baldwin sought certiorari.
Whether a party that has already litigated and lost a personal-jurisdiction challenge in one state's court may relitigate that same jurisdictional question in another state's court.