As I read Judge Lewis’ Order for Dismissal, the grounds were: (1) Failure To State A Claim Upon Which Relief Can Be Granted; (2) a court cannot issue a Writ of Mandamus against itself and (3) Judge Lewis disagreed with Plaintiff Voeltz’ assertion that two U.S. citizen parents are required in order to be considered to a natural born citizen.
Judge Lewis did mention standing briefly but only as a hypothetical should the plaintiff file a declaratory judgement claim.
http://www.scribd.com/doc/99025994/FL-2012-06-29-Voeltz-v-Obama-order-dismissing-amended-complaint
That’s a trainwreck of a decision. The judge cites Minor to say that the Constitution does not say who shall be natural-born citizens and then he goes straight to the 14th amendment of the Constitution to define eligibility. IOW, it’s a direct contradiction of unanimous Supreme Court precedent. I don’t know what argument Voeltz made, but it’s easy to show this judge contradicted his own rationale.