(CNN) -- The daughter of Cuba's president supports the re-election bid of U.S. President Barack Obama, but believes he could do more were it not for the pressures he is facing, she said in an interview broadcast Monday on "CNNi's Amanpour." "As a citizen of the world, I would like him to win," said Mariela Castro Espin, daughter of Raul Castro, in the exclusive interview, which was conducted Friday in New York. "Given the choices, I prefer Obama." The 49-year-old gay rights advocate said that Obama has been constrained in his ability to effect change. "He wants to do much more than what he's been able to do," she said. "That's the way I interpret it personally. I don't know if I'm being objective.""I would like him to win," Mariela Castro says of Obama's election bid"Obama needs another opportunity," she addsCastro says Alan Gross and the "Cuban 5" should be released
Asked if Obama would lift the half-century-old trade embargo on Cuba if he could, Castro said, "I believe that _ is a fair man. Castro was unswayed by _' recent request that he be allowed to visit his 90-year-old mother before she dies if he promises to return afterward to prison in Cuba. I think that the six must be released -- both the five Cubans and _." But Castro said the rights group "does not represent the opinion of the _ people.