When one is sued, one must respond (defend himself) or risk a default judgment.
Where's there is smoke, there is fire...the mere fact that over 60 lawsuits have been filed, proves that. There exists "reasonable doubt" that has - for far - NOT been quelled by any of the obamaland attorneys and their "proof"...which is mostly lip service.
Obama's attorneys have not been asked to offer any proof because none of the suits brought so far meet the requirement of standing.
Then why doesn't the obamaTATOR produce some proof and stop this further burden on the courts?
Obama is not burdening the courts, birthers are. Sixty suits, all dismissed for the same reason, and birthers have yet to figure out they're barking up the wrong tree.
No court or judge has asked Obama for any "proof". To whom should Obama present his "proof"?