There isn't any way to do that. Keep in mind that States elect Presidents - not citizens. So this cannot be settled until either a State puts Cruz's name on a ballot, or a State refuses to put Cruz's name on a ballot. It is how judicial law works. Cruz knows this. Grayson knows it, too. The only one ignorant of this is Donald Trump.
Donald Trump is spending lots of time and money campaigning against TEd Cruz. If Cruz is ineligible, Trump’s time and money is being stolen from him. He should have standing. Seems like George Stephanopolous (sp?) acknowledged that. I think a judge would be VERY hard-pressed to say that Trump has no injury if his money is being wasted campaigning against somebody who is ineligible.