Let us proceed to SCOTUS now
That is just not how it works. The SCOTUS, under the Constitution, can only take cases up from the Court and Appeal process.
Due to NBC being so ill defined within the Constitution, SCOTUS is unlikely to touch NBC. This is one of those “honorable person” things, the Founders saw as more common-place than maybe today.
Well, you are right. It needs to start now as a declaratory judgment in a friendly court to Cruz, like judge Hanen in San Antonio. Then whisk it of to 5th circuit and hope for a win. Then Scotus where I assure you it is a 5 to 4 loss unless Roberts is not compromised again. My opinion is irrelevant. I know this— “natural born” does not mean “no Cesarian”.