[okie01]

Your question is irrelevant. Cruz is a citizen-at-birth, tantamount to the Constitution's 'natural born citizen', and fully eligible to serve as the President.

Note further that legal challenges to Cruz's candidacy have been filed in five states -- Iowa, New Hampshire, South Carolina, Nevada and Illinois. All have been rejected.

However, the technical answer to your question is that, in the event of a SCOTUS tie, the individual Circuit Court decisions would be left standing -- but they would apply only within the geography of that particular circuit.

[musicman]

http://powderedwigsociety.com/eligibility-of-cruz-and-rubio/#

Pretty powerful and easy to understand presentation about Cruz and Rubio’s eligibility to run for POTUS.