Cruz is frequently mentioned as a Republican presidential candidate in 2016. The Constitution requires the president to be a "natural-born citizen," a term the document does not define.
He was born in Calgary, Alberta, 42 years ago, the son of a mother with U.S. citizenship and a Cuban-born father.
Cruz responded to a story Monday in The Dallas Morning News that he legally holds dual citizenship by renouncing any claim to be a Canadian, The New York Times reported.
"The Dallas Morning News says that I may technically have dual citizenship," Cruz, 42, said Monday. "Assuming that is true, then, sure, I will renounce any Canadian citizenship. Nothing against Canada. As a U.S. senator. I believe I should be only an American."
U.S. Sen. John McCain, R-Ariz., who was born in the Panama Canal Zone, where his father was serving as a Navy officer, had to deal with questions about whether he could be president when he ran in 2008. And President Obama, born in Hawaii to a U.S. mother and Kenyan father, has had to deal with "birthers" who say his Hawaiian birth certificate was forged despite state officials' insistence that everything is in order.
Celebrity Families of 2014 [PHOTOS]