You think if Ted Cruz decides to run that there will be a judicial hearing on the matter of his eligibility? I doubt that. It won't get that far. Sure, there will be a bunch of people bitching about it on the internet but as far as being adjudicated in a courtroom, ain't gonna happen.
The Senate will pass the same resolution they did with McCain allowing Cruz on the ballot. Left wing birthers will scream Cruz is ineligible. Much like with Obama, they'll get nowhere as courtroom after courtroom dismisses all legal challenges.
So there you have it.