Terrence K. v. United States Department of State

requiring that a non-diverse defendant be indispensable before allowing joinder | “It remains the defendant’s burden to show the existence and continuance of federal jurisdiction.” | “when a nondiverse party is added to a federal proceeding and that party’s presence is indispensable to the furnishing of complete relief, remand is mandated where federal subject matter jurisdiction depends on diversity jurisdiction, even though removal was originally proper.”