President Barack Obama is unlikely to meet long-time American nemesis Fidel Castro when he makes a historic visit to Cuba next month, a top aide said Thursday.

President Barack Obama is unlikely to meet long-time American nemesis Fidel Castro when he makes a historic visit to Cuba next month, a top aide said Thursday.

"I wouldn't expect him to meet with Fidel Castro, Raul Castro is the president of Cuba," said deputy national security advisor Ben Rhodes, announcing the March 21-22 visit.