I was going to say because he’s a natural born Canadian citizen, not a natural born American citizen.
Did he ever travel using a Canadian passport?
: )
No. He's always been an American.
Canada is welcome (by their standards) to claim as citizens, people born in their country but that doesn't change American law and citizenship.
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"...Birthers have been asserting that, since Rafael Cruz did not become an American citizen until 2005, and while he was in Canada with his wife, during which time Ted was born, he became an Canadian citizen. This, in the Birthers' view, disqualifies Ted from this Presidency, as "the Founders" never would have intended someone like him becoming President.
But look closer at the bolder portion. It never says that the father has to be a citizen of the United States at the time the child is born. All it says is that citizenship "shall not descend to persons whose fathers have never been resident in the United States." It is indisputable that Rafael Cruz was in the United States for a period of time prior to both Ted's birth and his marriage to native born American citizen Eleanor Elizabeth Darragh Wilson in 1969. He fled Cuba in 1957 at the age of 18, arriving in Texas. There, he attended the University of Texas, graduating with a degree in mathematics in 1961. He even married his first wife there, Julia Ann Garza, in 1959. They later divorced, but not before he had two daughters with her. He was also granted political asylum in 1961 upon his graduation from UT.
In other words, Ted Cruz's birth meets everything required in this 1790 act. His mother, Eleanor Wilson, was a citizen by birth in the United States, fulfilling the requirement of a child being born to at least one citizen, and his father had lived in the United States for years and been granted political asylum here prior to his move to Canada."... FR Thread