There is nowhere for Cruz to go for such a resolution, and no need for Cruz to obtain one, as the law is very specific and he and his parent(s) meet the requirements of law.
If Trump, the DNC or anyone else wants to make it a legal issue, then it is up to them to do so in court.
This is all a very stupid path for Trump to go down. It suggests he does not understand the law, or worse, does not like the reality of the law explained to him by those who do understand it.
Do you not grasp that if it’s left open ended now, the Dems will have a field day? You can sit at your keyboard all day every day typing it’s a settled issue. But IF Cruz is the nominee it will be a three ring circus.
Have you ever noticed that the MSM works in tandem with the Dems? Neither will give this issue a rest until the damage is done. The only way it’s a non-issue is if Cruz loses the primary.