“Then it is simple, if Cruz could be a Canadian citizen because of his being born there, then he is not natural born in the USA”
That is 100% FALSE.
It is possible to be a natural born citizen in the United States, and have the POTENTIAL to claim citizenship in 100 other countries.
This is part of the brain damage of the eligibility activists.
WHERE are you getting the idea that if another country offers citizenship one cannot be a natural born citizenship of the United States?
Show me where you find that in the US Constitution?
REMEMBER: A president can be eligible if he lived only 14 of his 35 minimum years in the United States.
The Constitution says he could have lived 60% of his life in a foreign country by age 35.
Except Cruz is a natural born citizen of Canada, not the USA. His Father was a naturalized Canadian citizen and he was born in Canada.