Cruz was born a citizen of the United States. There is no requirement that a candidate be born in the United States. That canard was invented by birthers who promised that they would prove Obama was born in Kenya. Well, they never did prove what they promised they would prove and their "born in the USA" claim died in the same crash that killed the rest of their claims.
Ted Cruz was born a citizen and is eligible to be president.
Ted Cruz - 2016.
Father was a Cuban citizen when Ted Cruz was born. Which makes Cruz a Cuban citizen at birth.