Today, lawsuits are brought (or not) based on today's consensus, not that dusty, quill pen-written stuff with its ablative absolutes and all, don't you know!?
FBI Director James Comey used the standard of "no reasonable prosecutor would bring such a case," regarding non-prosecution of HRC. Even though Jim was fired, his decision has stood, not reversed, for four years.
SCOTUS decides cases dependent on the outcome of elections.
Who needs the Constitution, law books, or case case law when you have such lofty standards as these modern tools?
1) Natural born
2) Naturalized
3) Alien.
When I studied the US Constitution in high school in 1966-67, there was no question that "natural born" meant "born here". At the time, the born-in-Mexico George Romney was a leading candidate for the Republican nomination for President.
I never heard the "two citizen parents" argument until Obama was sworn in.
It would be a serious mistake for the Trump campaign to take this up as an issue, it would lose many more votes than it could possibly gain.
And, if the USSC ever takes a case, they will unquestionably rule 9-0 that "born here" = NBC.