The dismissals in these cases are not based on the Federal Rules, so amending those Rules will not help. The standing doctrine is older than the Rules Enabling Act-- it is based on the courts' intepretation of Article III of the Constitution, which limits the jurisdiction of federal courts to "Cases and Controversies," which has been interpreted to mean actual, concrete disputes among parties with standing.
Now I’m thoroughly confused. The dismissal by the lower court on the basis of standing was affirmed. The 3rd Circuit panel said, “we agree.”
Is not “standing” a component of the FRCP?