That bottom line is that Constitutionally any challenge to a President's qualifications should be raised at the state level when the State is determining it's electoral college representation. This was attempted by Birthers at the time but every State in the Union accepted Obama's status as a natural born citizen.
If not done at the State level that there is another Constitutional opportunity to challenge a candidates qualifications when the Congress certifies the results the election. A campaign by Birthers was initiated to do just that. Even so, that campaign failed to get a single Congressman to accept their arguments that the President was not a natural born citizen as Congress unanimously voted to certify the election for Obama to include EVERY member of the opposing party.
There is no Constitutional basis for the courts to challenge the election of a President so certified by Congress and sworn in to the office. The ONLY constitutional means for removal of a sitting President, for any reason, is not through the courts but rather by Congress through the impeachment process in Article I of the Constitution or through the incapacity provisions of Section 4 of the 25th Amendment. Period.
Accordingly each and every case seeking and demanding judicial challenge to the President's status is without standing and completely frivolous and without merit. This would be true even IF the Birthers had credible evidence challenging the President's status as a natural born citizen, which they do not. The repetition of such frivolous cases, particular after repeated dismissals by courts in prior cases with clearly stated court notice of their frivolous nature, begs for the courts to impose sanctions on those bringing such cases in accordance with the law, as they have now started to do.
"A man never drinks anything that a plant lives in" --DBone (A Real Man).
http://vimeo.com/4938173