Barack Obama

epa05324583 US President Barack Obama (C-L) and Vietnam's President Tran Dai Quang (C-R) review an honor guard at the Presidential Palace in Hanoi, Vietnam, 23 May 2016. US President Barack Obama visits Vietnam for the first time from 23 to 25 May 2016, making him the third US President to visit the South East Asian country since the end of the Vietnam War in 1975. During the first day of his visit Obama announced that the US will lift its arms embargo on weapon sales to Vietnam.  EPA/MINH HOANG

Minh Hoang/EPA

US President Barack Obama (C-L) and Vietnam’s President Tran Dai Quang (C-R) review an honor guard at the Presidential Palace in Hanoi, Vietnam 

US President Barack Obama visits Germany...epa05276425 German†Chancellor Angela Merkel (R) tests a Virtual Reality (VR) goggle next to US†President Barack Obama (L) as they visit the booth of ifm electronic (automation engineering) at the Hannover Messe industrial technology trade fair in Hanover,†Germany, 25 April 2016. The USA is this year's partner country at the trade fair. The US President is on a two-day visit to Germany.  EPA/CHRITSTIAN†CHARISIUS

Chritstian Charisius/EPA

German Chancellor Angela Merkel tests a Virtual Reality (VR) goggle next to US President Barack Obama as they visit the booth of ifm electronic (automation engineering) at the Hannover Messe industrial technology trade fair in Hanover, Germany

US President Barack Obama (R) speaks wit...US President Barack Obama (R) speaks with Sheikh Mohammed bin Zayed al-Nahyan (L), Crown Prince of Abu Dhabi, during the US-Gulf Cooperation Council Summit in Riyadh, on April 21, 2016. Obama met Gulf leaders in Saudi Arabia to push for an intensified campaign against the Islamic State group, despite strains in Gulf ties with Washington.  / AFP PHOTO / Jim WatsonJIM WATSON/AFP/Getty Images

Jim Watson/AFP/Getty

US President Barack Obama speaks with Sheikh Mohammed bin Zayed al-Nahyan Crown Prince of Abu Dhabi, during the US-Gulf Cooperation Council Summit in Riyadh

US President Obama visits Argentina...epa05229215 US President Barack Obama (L) and his counterpart from Argentina Mauricio Macri (R) make a floral tribute to the victims of the military dictatorship aat Parque de la Memoria in Buenos Aires, Argentina, 24 March 2016. During the tour of the wall, next to the Rio de la plata, the leaders approached the railing, next to the runway, and threw white flowers in tribute to those who lost their lives at the military dictatorship.  EPA/DAVID FERNANDEZ

David Fernandez/EPA

US President Barack Obama and his counterpart from Argentina Mauricio Macri make a floral tribute to the victims of the military dictatorship at Parque de la Memoria in Buenos Aires, Argentina 

HAVANA, CUBA - MARCH 22:  U.S. President Barack Obama walks onto stage before delivering remarks at the Gran Teatro de la Habana Alicia Alonso 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 speeh will be nationally televised to the 11 million people on the communist-controlled island.  (Photo by Chip Somodevilla/Getty Images)

Chip Somodevilla/Getty

U.S. President Barack Obama walks on stage before delivering remarks at the Gran Teatro de la Habana Alicia Alonso in the hisoric Habana Vieja, Havana, Cuba

Reserved seating awaits attendees of Obama's address to the Cuban people at the Gran Teatro de la Habana Alicia Alonso in Havana...Reserved seating awaits attendees of U.S. President Barack Obama's address to the Cuban people at the Gran Teatro de la Habana Alicia Alonso in Havana March 22, 2016. REUTERS/Jonathan Ernst

Jonathan Ernst/Reuters

Reserved seating awaits attendees of U.S. President Barack Obama’s address to the Cuban people at the Gran Teatro de la Habana Alicia Alonso in Havana 

U.S. President Barack Obama and Cuba's President Raul Castro meet in Havana...U.S. President Barack Obama and Cuba's President Raul Castro hold their first meeting on the second day of Obama's visit to Cuba, in Havana March 21, 2016.     REUTERS/Carlos Barria

Carlos Barria/Reuters

U.S. President Barack Obama and Cuba’s President Raul Castro hold their first meeting in Havana on the second day of Obama’s visit to Cuba

A taxi pedals his bicycle, decorated with Cuban and U.S. flags, as he transports a woman holding a sleeping girl, near the Capitolio in Havana, Cuba, Tuesday, March 15, 2016. President Barack Obama will travel to Cuba on March 20. (AP Photo/Ramon Espinosa)

Ramon Espinosa/AP

A taxi pedals his bicycle, decorated with Cuban and U.S. flags, as he transports a woman holding a sleeping girl, near the Capitolio in Havana, Cuba. President Barack Obama will travel to Cuba on March 20

Barack Obama...President Barack Obama meets with members of his economic team in the Roosevelt Room of the White House in Washington, Friday, March 4, 2016. Obama spoke about U.S. employers adding 242,000 workers in February, driving another solid month for the resilient American job market.

Pablo Martinez Monsivais/AP

President Barack Obama meets with members of his economic team in the Roosevelt Room of the White House in Washington. Obama spoke about U.S. employers adding 242,000 workers in February, driving another solid month for the resilient American job market 

Russian President Vladimir Putin shakes hands with U.S. President Barack Obama as they attend the World Climate Change Conference 2015 (COP21) at Le Bourget, near Paris

Mikhail Klimentyev/Sputnik/Kremlin/Reuters

Russian President Vladimir Putin (L) shakes hands with U.S. President Barack Obama as they meet during the World Climate Change Conference 2015 (COP21) at Le Bourget, near Paris, France.

U.S. President Barack Obama (R) stands with Chinese President Xi Jinping during an arrival ceremony at the White House in Washington, September 25 2015.

Kevin Lamarque/Reuters

U.S. President Barack Obama stands with Chinese President Xi Jinping during an arrival ceremony at the White House in Washington

U.S. President Barack Obama views Bear Glacier on a boat tour of Kenai Fjords National Park in Seward, Alaska

Jonathan Ernst/Reuters

U.S. President Barack Obama views Bear Glacier on a boat tour of Kenai Fjords National Park in Seward, Alaska. Obama is on a three day visit to Americas most northern state

President, First Lady Host Girls Scouts At First-Ever White House Campout...WASHINGTON, DC - JUNE 30:  U.S. President Barack Obama (2nd L) and first lady Michelle Obama (3rd L) particiapte in campfire songs session with fourth-grade Girl Scouts during the first-ever White House Campout June 30, 2015 at South Lawn of the White House in Washington, DC. The first lady hosted the event, as part of her Let's Move! Outside initiative, for Girl Scouts to participate in activities to earn their Camper Badge, and to celebrate the release of the new Girls' Choice Outdoor badges.  (Photo by Alex Wong/Getty Images)

Alex Wong/Getty

U.S. President Barack Obama and first lady Michelle Obama participate in campfire songs session with fourth-grade Girl Scouts during the first-ever White House Campout at South Lawn of the White House in Washington D.C, The first lady hosted the event, as part of her Let’s Move! Outside initiative, for Girl Scouts to participate in activities to earn their Camper Badge, and to celebrate the release of the new Girls’ Choice Outdoor badges 

U.S. President Barack Obama, second left, and Chinese President Xi Jinping, second right, walk together at Zhongnanhai leaders compound before their private dinner, Tuesday, Nov. 11, 2014. The others walking with them are their translators.

Pablo Martinez Monsivais/AP

U.S. President Barack Obama and Chinese President Xi Jinping walk together with their translators at Zhongnanhai leaders compound before their private dinner on Tuesday

U.S. President Barack Obama and former President Bill Clinton walk past the Rose Garden to host an event marking the 20th anniversary of the national service program AmeriCorps at the White House in Washington September 12, 2014. In 1993, Clinton signed the bill that created AmeriCorps.

Kevin Lamarque/Reuters

U.S. President Barack Obama and former President Bill Clinton walk past the Rose Garden to host an event marking the 20th anniversary of the national service program AmeriCorps at the White House in Washington

U.S. President Barack Obama and British Prime Minister David Cameron, left, watch a flypast on the second day of a NATO summit at the Celtic Manor Resort in Newport, Wales on Friday, Sept. 5, 2014.

Matt Dunham/AP

U.S. President Barack Obama and British Prime Minister David Cameron, watch a flypast on the second day of a NATO summit at the Celtic Manor Resort in Newport, Wales on Friday

Underclassmen listen from the back of the stadium as U.S. President Obama speaks at a commencement ceremony at the United States Military Academy at West Point...Underclassmen listen from the back of the stadium as U.S. President Barack Obama speaks at a commencement ceremony at the United States Military Academy at West Point, New York, May 28, 2014. Obama's commencement address here is the first in a series of speeches that he and top advisers will use to explain U.S. foreign policy in the aftermath of conflicts in Iraq and Afghanistan and lay out a broad vision for the rest of his presidency. REUTERS/Kevin Lamarque

Kevin Lamarque/Reuters

Underclassmen listen from the back of the stadium as U.S. President Barack Obama speaks at a commencement ceremony at the United States Military Academy at West Point, New York. Obama’s commencement address here is the first in a series of speeches that he and top advisers will use to explain U.S. foreign policy in the aftermath of conflicts in Iraq and Afghanistan and lay out a broad vision for the rest of his presidency 

Barack Obama, Michelle Obama, Michael Bloomberg, Bill Clinton, Hillary Rodham Clinton...President Barack Obama and first lady Michelle Obama, along with former Secretary of State Hillary Rodham Clinton and former President Bill Clinton tour the Memorial Hall at the National September 11 Memorial Museum with former New York Mayor Michael Bloomberg, Thursday, May 15, 2014, in New York.

Carolyn Kaster/AP

President Barack Obama and first lady Michelle Obama, along with former Secretary of State Hillary Rodham Clinton and former President Bill Clinton tour the Memorial Hall at the National September 11 Memorial Museum with former New York Mayor Michael Bloomberg, Thursday 

An anti-US protester dressed like the St...An anti-US protester dressed like the Statue of Liberty stands next to a giant mock US flag during a protest near the Malacanang palace in Manila on April 29, 2014, as US President Barack Obama's visit to the capital winds down. The protesters were protesting against the newly-signed defense agreement between the US and the Philippines, with President Obama ending an Asian tour April 29 with a warning to China against using force to resolve territorial disputes, and an "ironclad" promise of military support for the Philippines.     AFP PHOTO/TED ALJIBETED ALJIBE/AFP/Getty Images

Ted Aljibe/AFP

An anti-US protester dressed like the Statue of Liberty stands next to a giant mock US flag during a protest near the Malacanang palace in Manila, as US President Barack Obama‘s visit to the capital winds down. The protesters were protesting against the newly-signed defense agreement between the US and the Philippines. 

U.S. President Obama walks with Japan's Emperor Akihito and his wife Empress Michiko past an honour guard with Japan and U.S. flags during an official arrival ceremony at the Imperial Palace in Tokyo...U.S. President Barack Obama walks with Japan's Emperor Akihito (3rd L) and his wife Empress Michiko (L) past an honour guard with Japan and U.S. flags during an official arrival ceremony at the Imperial Palace in Tokyo April 24, 2014. Obama will use a state visit to Japan on Thursday to try to reassure Asian allies of his commitment to ramping up U.S. engagement in the region, despite Chinese complaints that his real aim is to contain Beijing's rise. REUTERS/Jim Watson/Pool

Jim Watson/Reuters

US president Barack Obama with Japan’s emperor Akihito and empress Michiko pass an honour guard during an arrival ceremony at the Imperial Palace in Tokyo