No.
His father was Cuban, his mother a US citizen. Canada, Cuba, and the US could all make claim.
No claim other than the US's is relevant.
What is clear is that Cruz is not a natural born citizen of the US. Without statute he wouldn’t be a citizen at all.
The statute defines who is a US citizen at birth. To claim that he would not be a citizen without that statute -- and that there is some class of "naturals" who would be -- is to assume a definition that is not in the law or the Constitution. You can invoke natural law, and so can anyone, on anything; Nature hasn't handed down any statutes.
“The statute defines who is a US citizen at birth. To claim that he would not be a citizen without that statute — and that there is some class of “naturals” who would be — is to assume a definition that is not in the law or the Constitution. You can invoke natural law, and so can anyone, on anything; Nature hasn’t handed down any statutes.”
The statute defines who is a CITIZEN at birth. Without the naturalization statute he would not be a citizen.
The US born child of citizens has ALWAYS been a citizen and it has NEVER been doubted. NO LAW makes this so.