US President Barack Obama (R) and First Lady Michelle Obama wave as they board their plane at Jose Marti international airport in Havana on March 22, 2016, on their way to Argentina. US President Barack Obama told Cubans on Tuesday he wants to "bury" decades of Cold War conflict and then joined his counterpart Raul Castro for some baseball diplomacy to wrap up his historic visit to the communist island. (YURI CORTEZ/AFP/Getty Images)
President Obama Attends Tampa Bay Devil Rays v Cuban National Team Baseball Game In Havana
HAVANA, CUBA - MARCH 22: Fans cheer during the first inning of play during the exhibition game between Tampa Bay Rays and the Cuban national team at the Estado Latinoamericano March 22, 2016 in Havana, Cuba. This is the first time a sittng president has visited Cuba in 88 years. (Photo by Joe Raedle/Getty Images)
President Obama Attends Tampa Bay Devil Rays v Cuban National Team Baseball Game In Havana
US President Barack Obama (L) and Cuban President Raul Castro observe a moment of silence for the terrorist attacks which took place in Belgium, before the start of a baseball game between the Tampa Bay Rays and the Cuban national team at the Estadio Latinoamericano in Havana on March 22, 2016. (NICHOLAS KAMM/AFP/Getty Images)
President Obama Attends Tampa Bay Devil Rays v Cuban National Team Baseball Game In Havana
HAVANA, CUBA - MARCH 22: Members of the Cuban national baseball team prepare for the opening ceremony before the start of an exhibition game against the Major League Baseball team Tampa Bay Devil Rays at the Estado Latinoamericano March 22, 2016 in Havana, Cuba. Cuban President Raul Castro and U.S. President Barack Obama attended the game, the first time a sittng president has visited Cuba in 88 years. (Photo by Chip Somodevilla/Getty Images)
President Obama Attends Tampa Bay Devil Rays v Cuban National Team Baseball Game In Havana
HAVANA, CUBA - MARCH 22: Underneath the dilapidated awning at the Estadio Latinoamericano people watch an exhibition game between the Cuban national team and Major League Baseball's Tampa Bay Devil Rays at the Estado Latinoamericano March 22, 2016 in Havana, Cuba. U.S. President Barack Obama and Cuban President Raul Castro attended the game. (Photo by Chip Somodevilla/Getty Images)
President Obama Attends Tampa Bay Devil Rays v Cuban National Team Baseball Game In Havana
HAVANA, CUBA - MARCH 22: Tampa Bay Rays players stand with children as they are introduced before the start of their game against the Cuban national team at the Estado Latinoamericano March 22, 2016 in Havana, Cuba. This is the first time a sittng president has visited Cuba in 88 years. (Photo by Joe Raedle/Getty Images)
Obama In Baseball Game In Cuba
TOPSHOT - US President Barack Obama (2-R), First Lady Michelle Obama (C), their daughters Sasha and Malia (L) and Cuban President Raul Castro (R) hold a minute of silence for the terrorist attacks which took place in Belgium before a Major League baseball exhibition game at the Latinoamericano stadium in Havana on March 22, 2016. Obama praised the bravery of Cuban dissidents Tuesday in a meeting at the US embassy in Havana, although opponents back home dismissed the event as a "token" gesture. (RODRIGO ARANGUA/AFP/Getty Images)
President Obama Attends Tampa Bay Devil Rays v Cuban National Team Baseball Game In Havana
HAVANA, CUBA - MARCH 22: Tampa Bay Rays players stand with children as they are introduced before the start of their game against the Cuban national team at the Estado Latinoamericano March 22, 2016 in Havana, Cuba. This is the first time a sittng president has visited Cuba in 88 years. (Photo by Joe Raedle/Getty Images)
Obama In Baseball Game In Cuba
US President Barack Obama (R) waves next to Cuban President Raul Castro as they attend a Major League baseball exhibition game at the Latinoamericano stadium in Havana on March 22, 2016. Obama praised the bravery of Cuban dissidents Tuesday in a meeting at the US embassy in Havana, although opponents back home dismissed the event as a "token" gesture. (RODRIGO ARANGUA/AFP/Getty Images)
President Obama Attends Tampa Bay Devil Rays v Cuban National Team Baseball Game In Havana
HAVANA, CUBA - MARCH 22: Children wait in the dugout to escort players during the exhibition game between Tampa Bay Rays and the Cuban national team at the Estado Latinoamericano March 22, 2016 in Havana, Cuba. This is the first time a sittng president has visited Cuba in 88 years. (Photo by Joe Raedle/Getty Images)
President Obama Attends Tampa Bay Devil Rays v Cuban National Team Baseball Game In Havana
US President Barack Obama (L) speaks with Cuban President Raul Castro during a Major League baseball exhibition game at the Latinoamericano stadium in Havana on March 22, 2016. Obama praised the bravery of Cuban dissidents Tuesday in a meeting at the US embassy in Havana, although opponents back home dismissed the event as a "token" gesture. (RODRIGO ARANGUA/AFP/Getty Images)
President Obama Attends Tampa Bay Devil Rays v Cuban National Team Baseball Game In Havana
HAVANA, CUBA - MARCH 22: U.S. President Barack Obama (L) uses his hands to pretend to sleep as Cuban President Raul Castro gives a thumbs up during an exhibition game between the Cuban national baseball team and Major League Baseball's Tampa Bay Devil Rays at the Estado Latinoamericano March 22, 2016 in Havana, Cuba. This is the first time a sittng president has visited Cuba in 88 years. (Photo by Chip Somodevilla/Getty Images)
Obama In Baseball Game In Cuba
US President Barack Obama (2-R), First Lady Michelle Obama (2-L), their daughter Sasha (L) and Cuban President Raul Castro applaud during a Major League baseball exhibition game at the Latinoamericano stadium in Havana on March 22, 2016. Obama praised the bravery of Cuban dissidents Tuesday in a meeting at the US embassy in Havana, although opponents back home dismissed the event as a "token" gesture. (RODRIGO ARANGUA/AFP/Getty Images)
Obama In Baseball Game In Cuba
US President Barack Obama (C) and Cuban President Raul Castro (L) wait for the start of a baseball game between the Tampa Bay Rays and the Cuban national team at the Estadio Latinoamericano in Havana on March 22, 2016. (NICHOLAS KAMM/AFP/Getty Images)
President Obama Attends Tampa Bay Devil Rays v Cuban National Team Baseball Game In Havana
HAVANA, CUBA - MARCH 22: U.S. President Barack Obama, Michell Obama and Cuban President Raul Castro greet the umpires before the exhibition game between the Cuban national team and the Tampa Bay Rays of the Major League Baseball at the Estado Latinoamericano March 22, 2016 in Havana, Cuba. This is the first time a sittng president has visited Cuba in 88 years. (Photo by Joe Raedle/Getty Images)
CUBA-US-OBAMA-BASEBALL
Players warm up before the start of a baseball exhibition game between Cuba and US Tampa Bay Rays at the Latinoamericao Stadium in Havana, to be attended by US President Barack Obama and his family
on March 22, 2016. AFP PHOTO/YAMIL LAGE / AFP / YAMIL LAGE (Photo credit should read YAMIL LAGE/AFP/Getty Images)
CUBA-US-OBAMA-BASEBALL
People cheer before the start of a baseball exhibition game between Cuba and US team Tampa Bay Rays at the Latinoamericao Stadium in Havana, to be attended by US President Barack Obama and his family
on March 22, 2016. AFP PHOTO/YAMIL LAGE / AFP / YAMIL LAGE (Photo credit should read YAMIL LAGE/AFP/Getty Images)
CUBA-US-OBAMA-BASEBALL
People wait for the start of a baseball exhibition game between Cuba and US Tampa Bay Rays at the Latinoamericano Stadium in Havana, to be attended by US President Barack Obama and his family on March 22, 2016. AFP PHOTO/YAMIL LAGE / AFP / YAMIL LAGE (Photo credit should read YAMIL LAGE/AFP/Getty Images)
President Barack Obama Speaks With Homeland Security Advisor Lisa Monaco
HAVANA, CUBA - MARCH 22: In this handout photo provided by the White House, President Barack Obama and National Security Advisor Susan Rice talk on the phone with Homeland Security Advisor Lisa Monaco to receive an update on a terrorist attack in Brussels, Belgium on March 22, 2016 in Havana, Cuba. The President made the call from the residence of the U.S. Chief of Mission in Havana. (Photo by Pete Souza/The White House via Getty Images)
CUBA-US-OBAMA
US President Barack Obama (3-R) takes part in a Civil Society Roundtable discussion at the US embassy in Havana on March 22, 2016. President Barack Obama said that Cubans should be free to speak without fear, should not be detained for their thoughts and should embrace democracy, in a speech televised across the Communist-run island Tuesday. AFP PHOTO/ Nicholas KAMM / AFP / NICHOLAS KAMM (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
CUBA-US-OBAMA
US President Barack Obama (C) takes part in a Civil Society Roundtable discussion at the US embassy in Havana on March 22, 2016. President Barack Obama said that Cubans should be free to speak without fear, should not be detained for their thoughts and should embrace democracy, in a speech televised across the Communist-run island Tuesday. AFP PHOTO/ Nicholas KAMM / AFP / NICHOLAS KAMM (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
CUBA-US-OBAMA
US President Barack Obama takes part in a Civil Society Roundtable discussion at the US embassy in Havana on March 22, 2016. President Barack Obama said that Cubans should be free to speak without fear, should not be detained for their thoughts and should embrace democracy, in a speech televised across the Communist-run island Tuesday. AFP PHOTO/ Nicholas KAMM / AFP / NICHOLAS KAMM (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
President Obama Delivers Speech At Gran Teatro In Havana
HAVANA, CUBA - MARCH 22: Cuban President Raul Castro (C) acknowledges applause as he arrives at the Gran Teatro de la Habana Alicia Alonso to hear a speech by U.S. President Barack Obama in the hisoric Habana Vieja, or Old Havana, neighborhood March 22, 2016 in Havana, Cuba. Described as a message to the Cuban people about his vision for the future of Cuba, Obama's speech will be nationally televised to the 11 million people on the communist-controlled island. (Photo by Chip Somodevilla/Getty Images)
President Obama Delivers Speech At Gran Teatro In Havana
US President Barack Obama delivers a speech at the Gran Teatro de la Habana in Havana on March 22, 2016. During his address to Cubans Obama said he has come to Cuba to 'bury last remnant' of Cold War. (NICHOLAS KAMM/AFP/Getty Images)
President Obama Delivers Speech At Gran Teatro In Havana
HAVANA, CUBA - MARCH 22: Cuban prima ballerina assoluta and choreographer Alicia Alonso acknowledges applause as she enters the theater that bears her name, the Gran Teatro de la Habana Alicia Alonso, before the arrival of U.S. President Barack Obama in the Old Havana city center March 22, 2016 in Havana, Cuba. Described as a message to the Cuban people about his vision for the future of Cuba, Obama's speech will be nationally televised to the 11 million people on the communist-controlled island. (Photo by Chip Somodevilla/Getty Images)
President Obama Delivers Speech At Gran Teatro In Havana
US President Barack Obama(C) meets Cuban dancer Alicia Alonso(2R) at the Gran Teatro of Havana while Cuban President Raul Castro(L) looks on in Havana, Cuba on March 22, 2016. (YURI CORTEZ/AFP/Getty Images)
President Obama Delivers Speech At Gran Teatro In Havana
HAVANA, CUBA - MARCH 22: A Cuban security agent stands keeping an eye on members of the press and invited guests from a balcony in the Gran Teatro de la Habana Alicia Alonso in the Old Havana city center where U.S. President Barack Obama will deliver remarks March 22, 2016 in Havana, Cuba. Described as a message to the Cuban people about his vision for the future of Cuba, Obama's speech will be nationally televised to the 11 million people on the communist-controlled island. (Photo by Chip Somodevilla/Getty Images)
Cuba Faces Historic Changes As Relations With U.S. Broaden
HAVANA, CUBA - MARCH 22: People wait to see U.S. President Barack Obama drive past on his way to address the Cuban people on television from the Gran Teatro on March 22, 2016 in Havana, Cuba. Mr. Obama's visit is the first in nearly 90 years for a sitting president, the last one being Calvin Coolidge. (Photo by Joe Raedle/Getty Images)
Cuba Faces Historic Changes As Relations With U.S. Broaden
HAVANA, CUBA - MARCH 22: People wait to see U.S. President Barack Obama drive past on his way to address the Cuban people on television from the Gran Teatro on March 22, 2016 in Havana, Cuba. Mr. Obama's visit is the first in nearly 90 years for a sitting president, the last one being Calvin Coolidge. (Photo by Joe Raedle/Getty Images)
Cuban Leader Raul Castro Hosts State Dinner For President Obama
HAVANA, CUBA - MARCH 21: U.S. President Barack Obama (L) greets House Minority Leader Nancy Pelosi (D-CA) (C) while acknowledging members of Congress that are attending a state dinner at the Palace of the Revolution March 21, 2016 in Havana, Cuba. March 21, 2016 in Havana, Cuba. This is the first time a sitting U.S. president has visited Cuba in 88 years. (Photo by Chip Somodevilla/Getty Images)
Cuban Leader Raul Castro Hosts State Dinner For President Obama
HAVANA, CUBA - MARCH 21: Cuban President Raul Castro (3rd L), U.S. first lady Michelle Obama and U.S. President Barack Obama (R) greet one another with the help of translators before a state dinner at the Palace of the Revolution March 21, 2016 in Havana, Cuba. March 21, 2016 in Havana, Cuba. This is the first time a sitting U.S. president has visited Cuba in 88 years. (Photo by Chip Somodevilla/Getty Images)
Cuban Leader Raul Castro Hosts State Dinner For President Obama
Sitting next to Cuban President Raul Castro (R), US President Barack Obama (L) smiles during the state dinner at the Revolution Palace in Havana on March 21, 2016. Obama and Castro vowed Monday in Havana to set aside their differences in pursuit of what the US president called a "new day" for the long bitterly divided neighbors. (ADALBERTO ROQUE/AFP/Getty Images)
Cuban Leader Raul Castro Hosts State Dinner For President Obama
US President Barack Obama and First Lady Michelle Obama arrive at the state dinner at the Revolution Palace in Havana on March 21, 2016. Obama and his Cuban counterpart Raul Castro vowed Monday in Havana to set aside their differences in pursuit of what the US president called a "new day" for the long bitterly divided neighbors. (NICHOLAS KAMM/AFP/Getty Images)
John Kerry & Raul Castro
US Secretary of State John Kerry (L) shakes hands with Cuban President Raul Castro ahead of the state dinner at the Revolution Palace in Havana on March 21, 2016. US President Barack Obama and Castro vowed Monday in Havana to set aside their differences in pursuit of what the US president called a "new day" for the long bitterly divided neighbors. (ADALBERTO ROQUE/AFP/Getty Images)
Obama & Castro Hold Joint News Conference
Cuban President Raul Castro (R) raises US President Barack Obama's hand during a meeting at the Revolution Palace in Havana on March 21, 2016. Cuba's Communist President Raul Castro on Monday stood next to Barack Obama and hailed his opposition to a long-standing economic "blockade," but said it would need to end before ties are fully normalized. ( NICHOLAS KAMM/AFP/Getty Images)
Obama & Castro Hold Joint News Conference
US President Barack Obama speaks during a joint press conference with Cuban President Raul Castro (R) after a meeting at the Revolution Palace in Havana on March 21, 2016. Cuba's Communist President Raul Castro on Monday stood next to Barack Obama and hailed his opposition to a long-standing economic "blockade," but said it would need to end before ties are fully normalized. (NICHOLAS KAMM/AFP/Getty Images)
President Obama Meets With Cuban President Raul Castro In Havana
HAVANA, CUBA - MARCH 21: U.S. President Barack Obama (R) and Cuban President Raul Castro greet one another before bilateral meetings at the Palace of the Revolution March 21, 2016 in Havana, Cuba. These are the first direct talks between Castro and Obama, the first sitting U.S. president to visit Cuba in 88 years. (Photo by Chip Somodevilla/Getty Images)
President Obama Meets With Cuban President Raul Castro In Havana
HAVANA, CUBA - MARCH 21: U.S. President Barack Obama (R) and Cuban President Raul Castro review troops before bilateral meetings at the Palace of the Revolution March 21, 2016 in Havana, Cuba. These are the first direct talks between Castro and Obama, the first sitting U.S. president to visit Cuba in 88 years. (Photo by Chip Somodevilla/Getty Images)
President Obama Meets With Cuban President Raul Castro In Havana
HAVANA, CUBA - MARCH 21: U.S. President Barack Obama (3rd L) and Cuban President Raul Castro (L) review troops before bilateral meetings at the Palace of the Revolution March 21, 2016 in Havana, Cuba. These are the first direct talks between Castro and Obama, the first sitting president to visit Cuba in 88 years. (Photo by Chip Somodevilla/Getty Images)
President Obama Meets With Cuban President Raul Castro In Havana
HAVANA, CUBA - MARCH 21: Cuban President Raul Castro (2nd L) and U.S. President Barack Obama (R) speak to each other with the help of translators at the Palace of the Revolution March 21, 2016 in Havana, Cuba. The first sitting U.S. president to visit Cuba in 88 years, Obama and Castro will be sitting down for bilateral talks. (Photo by Chip Somodevilla/Getty Images)
President Obama Lays Wreath At Jose Marti Memorial
HAVANA, CUBA - MARCH 21: President Barack Obama and John Kerry, U.S. Secretary of State, listen to the playing of the U.S. National Anthem as they take part in a wreath laying ceremony at the Jose Marti memorial in Revolution Square on March 21, 2016 in Havana, Cuba. Mr. Obama's visit is the first in nearly 90 years for a sitting president, the last one being Calvin Coolidge. (Photo by Joe Raedle/Getty Images)
President Obama Lays Wreath At Jose Marti Memorial
HAVANA, CUBA - MARCH 21: President Barack Obama stands with Salvador Sanchez Mesa, Vice President of the Council of Ministry, as they take part in a wreath laying ceremony at the Jose Marti memorial in Revolution Square on March 21, 2016 in Havana, Cuba. Mr. Obama's visit is the first in nearly 90 years for a sitting president, the last one being Calvin Coolidge. (Photo by Joe Raedle/Getty Images)
US Secretary of State John Kerry In Cuba
US Secretary of State John Kerry walks after a wreath-laying ceremony at the Jose Marti monument in the Revolution square of Havana, on March 21, 2016. President Barack Obama will hold rare talks with his Cuban counterpart Raul Castro on Monday in Havana, setting aside a more than half-century bitter standoff between the United States and the communist island. (YAMIL LAGE/AFP/Getty Images)
President Obama Tours Havana Cathedral
TOPSHOT - US President Barack Obama talks to tourists and Cubans at his arrival to the Havana Cathedral, on March 20, 2016. On Sunday, Obama became the first US president in 88 years to visit Cuba, touching down in Havana for a landmark trip aimed at ending decades of Cold War animosity. (YAMIL LAGE/AFP/Getty Images)
President Obama Meet Children In Cuba
US President Barack Obama and First Lady Michelle Obama greet children of US embassy staff in Havana on March 20, 2016. Obama arrived in Cuba to bury the hatchet in a more than half-century-long Cold War conflict that turned the communist island and its giant neighbor into bitter enemies. (NICHOLAS KAMM/AFP/Getty Images)
President Obama Tours Old Havana
US President Barack Obama and First Lady Michelle Obama visit the Catedral de los Angeles during a tour of Old Havana on March 20, 2016. Obama arrived in Cuba to bury the hatchet in a more than half-century-long Cold War conflict that turned the communist island and its giant neighbor into bitter enemies. (NICHOLAS KAMM/AFP/Getty Images)
President Obama Tours Old Havana Neighborhood
HAVANA, CUBA - MARCH 20: U.S. President Barack Obama (L), first lady Michelle Obama (4th L) and their daughters Malia (2nd R), 17, and Sasha (2nd L), 14, stop to look at a painting of Abraham Lincoln in the Museum of the City of Havana during a walking tour of the historic Old Havana March 20, 2016 in Havana, Cuba. Obama is the first sitting president to visit Cuba in nearly 90 years. (Photo by Chip Somodevilla/Getty Images)
President Obama Tours Old Havana Neighborhood
HAVANA, CUBA - MARCH 20: U.S. President Barack Obama (2nd L) his daughter Malia (C), 17, and and other members of the first family pause to look at a statue of Cuban independence hero Carlos Manuel de Cespedes during a walking tour of in the plaza of the 18th century Catedral de San Cristobal de la Habana in the historic Old Havana neighborhood March 20, 2016 in Havana, Cuba. Obama is the first sitting president to visit Cuba in nearly 90 years. (Photo by Chip Somodevilla/Getty Images)
President Obama Arrives In Cuba
US President Barack Obama arrives at Jose Marti international airport in Havana on March 20, 2016. Obama, who is on a historic three-day visit to the communist-ruled island, flew to Cuba Sunday to bury the hatchet in a more than half-century-long Cold War standoff, but the arrest of dozens of dissidents just as his plane took off underlined the delicacy of the mission. (YURI CORTEZ/AFP/Getty Images)
President Obama Arrives In Cuba
HAVANA, CUBA - MARCH 20: First lady Michelle Obama, President Barack Obama, Malia Obama and Sasha Obama arrive at Jose Marti International Airport for a 48-hour visit on Airforce One March 20, 2016 in Havana, Cuba. Obama is the first President in nearly 90 years to visit Cuba, the last one being Calvin Coolidge. (Photo by Joe Raedle/Getty Images)
Obama In Cuba
US President Barack Obama (2nd L), First Lady Michelle Obama (L) and daughters Malia (2nd R) and Sasha (R) disembark from Air Force One at the Jose Marti International Airport in Havana on March 20, 2016. Obama arrived in Cuba to bury the hatchet in a more than half-century-long Cold War conflict that turned the communist island and its giant neighbor into bitter enemies. AFP PHOTO/Nicholas KAMM / AFP / NICHOLAS KAMM (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)