490, 498 (1975).  Establishing his standing is an "indispensable part of the plaintiff's case" upon which Newdow bears the burden of proof.  Lujan v. Defenders or Wildlife, 504 U.S. 555, 561 (1992) .
To carry this burden. Newdow must satisfy three requirements:
First, he must demonstrate that he has suffered from an "injury in fact." Whitmore v. Arkansas, 495 U.S. 149, 155 (1990).
Second, there must be causation--the injury must be traceable to the defendant's conduct.  Simon v. Eastern Ky. Welfare Rights Organization^ 426 U.S. 26, 41-42 (1976).
Third, there must be redressability--the likelihood that the requested relief will redress the alleged injury.  Jd., at 45-46.
As to the first element, Mewdow must establish standing by showing that he has already suffered an "...'injury in fact' --an invasion of a legally protected interest which is (a) concrete and particularized and (b) 'actual or imminent,' not 'conjectural' or 'hypothetical.'"  Lujan v. Defenders of Wildlife, 504 U.S. at 560 (citations omitted).  An alleged injury to an interest "which is held in common by all members of the public" is not the sort of "[cjoncrete injury, whether actual or threatened" which "is that indispensable element of a dispute which serves in part to cast it in a form traditionally capable of judicial resolution."  Schlesinger v. Reservists Committee to Stop the War, 418 U.S. 208, 220-21 (1974); see also, e.g.. United States v. Hays, 515 U.S. 737, 743 (1995)(generalized grievance against allegedly illegal government conduct is insufficient for standing).
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