Once Cruz gets primary votes Trump would have suffered damages.
As soon as Cruz wins IA Trump should sue, and the 2 top-runners should work together to get both a Constitutional ruling AND the truth of whether a foreign-born “President” has already established precedent here.
The crimes that put Obama into office are WAY overdue to be exposed, and if/when Trump and/or Cruz are granted discovery, whistleblowers will need to be the first to come out of the woodwork because the truth will out and those who tell the truth last will be the first ones strung up and hanged until dead.
No, because there is no proof they would have gone to Trump. If Cruz wins the nomination then Trump may - may - have standing to sue because he might be able to show that he would have been the nominee had Cruz not been there. But even then with all the other candidates in the race that would be hard to prove.