Byron York says that you should never fear, that indeed Ted Cruz is a US Citizen by birth and therefore eligible to be president if he so chooses to run:
WASHINGTON EXAMINER – In the past few days, there has been renewed buzz on the Internet about the presidential eligibility of Texas Sen. Ted Cruz. Cruz has only been in the Senate for about 60 days and does not appear to be behind any of the talk. But he has certainly been in the news in recent days, and in response to a request for comment, his spokesman, Sean Rushton, sent me this note:
Sen. Cruz is a U.S. citizen by birth, having been born in Calgary to an American-born mother. He is focused entirely on his new role in the Senate, and on working every day to represent Texas and defend conservative principles in the Senate.
Any talk about Cruz follows years of discussion about birthplace and presidential eligibility involving President Obama, Sen. John McCain, and Sen. Marco Rubio. The bottom line in the case of Cruz, who was born in Canada in 1970, is that his father was an immigrant from Cuba and not a U.S. citizen at the time of young Cruz’s birth, but his mother was born and raised in the United States. The law in effect then, and now, made Ted Cruz a U.S. citizen at birth. Although the drafters of the Constitution did not define what they meant when they required an American president to be a “natural born citizen,” it is generally thought that “citizen by birth” is the best modern-day equivalent. On that basis, Cruz appears entirely eligible — if he ever chooses to pursue the White House.
As a bonus, here’s an interview with Ted Cruz from today: