I believe one was filed by a Secretary of State. If they don’t have standing, then no one does. How is it possible that a candidate for the presidency does not have to provide proof of being a natural born citizen?
Because there is no law designating a process for doing so. No federal agency is tasked with checking presidential qualifications. Not a single prior presidential candidate has been required to do so. It's one of those things that has kind of fallen through the cracks. It'd be nice to think that the situation will be rectificed by Congress, but not with the Democrats in charge.
"A nation can survive its fools, and even the ambitious.
But it cannot survive treason from within. An enemy at the gates is less formidable, for he is known and carries his banner openly.
But the traitor moves amongst those within the gate freely, his sly whispers rustling through all the alleys, heard in the very halls of government itself.
For the traitor appears not a traitor; he speaks in accents familiar to his victims, and he wears their face and their arguments, he appeals to the baseness that lies deep in the hearts of all men.
He rots the soul of a nation, he works secretly and unknown in the night to undermine the pillars of the city, he infects the body politic so that it can no longer resist.
A murderer is less to be feared."
-- Marcus Tullius Cicero