Sen. Ted Cruz was born in Canada, leading some to question whether the U.S. Constitution, which restricts eligibility to “natural born” citizens, bars him from running for president. Many legal scholars say it ultimately shouldn’t be an obstacle. “I think it’s pretty clear that “natural born” is defined in such a way as it includes everybody that has citizenship and who got it [in a way] other than from naturalization,” said professor Peter Spiro, a citizenship law expert at Temple.