Of course, Obama had dual citizenship.  His father was a citizen of Kenya, which makes him eligible for citizenship under Kenya's constitution.  Obama was born in Hawaii therefore he is also a U.S. citizen.  Also, Obama can claim U.S. citizenship through his mother, who was also a U.S. citizen.  However, Obama lost his Kenya citizenship at 23, but no one talks about the fact that he was a dual citizen until he was 23.  You have edited the article to call attention to Cruz's status that is POV pushing.