see more

HAVANA, CUBA - MARCH 21: U.S. President Barack Obama waits as Cuban President Raul Castro talks to a government official during a joint press conference at the Cuban State Council, on March 21, 2016 in Havana, Cuba. Mr. Obama, who is on a 48 hour trip to Cuba, is the first sitting U.S. President to visit Cuba in almost 90 years. (Photo by Sven Creutzmann/Mambo photo/Getty Images)

HAVANA, CUBA - MARCH 21: U.S. President Barack Obama waits as Cuban President Raul Castro talks to a government official during a joint press conference at the Cuban State Council, on March 21, 2016 in Havana, Cuba. Mr. Obama, who is on a 48 hour trip to Cuba, is the first sitting U.S. President to visit Cuba in almost 90 years.  (Photo by Sven Creutzmann/Mambo photo/Getty Images)