Of course not. But that question is irrelevant if Cruz's dual or triple citizenship (US, Canada, Cuba) is an issue for his qualification as Commander in Chief of the US Armed Forces.
It won’t be. If Cruz runs, the law is pretty clear about his status.
The only argument anyone has against him is 3 words in the Constitution that aren’t defined, and those who object define it their own peculiar way without regard to contradictory historical and legal opinion.
Any citizenship conferred by any other country is irrelevant. The constitution says nary a word about it. All it says is “natural born citizen”.
Everything else is opinion. All of this fire and smoke is about a difference of opinion.