WASHINGTON, DC - JANUARY 20: President Barack Obama is seen in the Oval Office for the last time as President, in Washington, D.C. on January 20, 2017. Later today President-Elect Donald Trump will be sworn-in as the 45th President. (Photo by Kevin Dietsch-Pool/Getty Images) Crédito: AP/Getty/Reuters
WASHINGTON, DC - JANUARY 20: U.S. President Barack Obama walks on the colonnade after leaving the Oval Office for the last time as President, in Washington, D.C. on January 20, 2017. Later today President-Elect Donald Trump will be sworn-in as the 45th President. (Photo by Kevin Dietsch-Pool/Getty Images) Crédito: AP/Getty/Reuters
WASHINGTON, DC - JANUARY 20: President Barak Obama leaves the White House for the final time as President as the nation prepares for the inauguration of President-elect Donald Trump on January 20, 2017 in Washington, D.C. Trump becomes the 45th President of the United States. (Photo by Kevin Dietsch-Pool/Getty Images) AP/Getty/Reuters
WASHINGTON, DC - JANUARY 20: President Barack Obama (R) gives Michelle Obama a kiss as they wait for President-elect Donald Trump and wife Melania at the White House before the inauguration on January 20, 2017 in Washington, D.C. Trump becomes the 45th President of the United States. (Photo by Kevin Dietsch-Pool/Getty Images) Crédito: AP/Getty/Reuters
WASHINGTON, DC - JANUARY 20: President Barack Obama and First Lady Michelle Obama welcome President-elect Donald Trump and his wife Melania to the White House prior to the inauguration in Washington, D.C. on January 20, 2017. Later today Donald Trump will be sworn-in as the 45th President. (Photo by Kevin Dietsch-Pool/Getty Images) Crédito: AP/Getty/Reuters
WASHINGTON, DC - JANUARY 20: President-elect Donald Trump (L),and his wife Melania Trump (2ndR), are greeted by President Barack Obama and his wife first lady Michelle Obama, upon arriving at the White House on January 20, 2017 in Washington, DC. Later in the morning President-elect Trump will be sworn in as the nation's 45th president during an inaugural ceremony at the U.S. Capitol. (Photo by Mark Wilson/Getty Images) Crédito: AP/Getty/Reuters
WASHINGTON, DC - JANUARY 20: President Barak Obama (R) and President-elect Donald Trump smile at the White House before the inauguration on January 20, 2017 in Washington, D.C. Trump becomes the 45th President of the United States. (Photo by Kevin Dietsch-Pool/Getty Images) Crédito: AP/Getty/Reuters
President Barack Obama (R) greets President elect Donald Trump at inauguration ceremonies swearing in Donald Trump as the 45th president of the United States on the West front of the U.S. Capitol in Washington, U.S., January 20, 2017. REUTERS/Carlos Barria TPX IMAGES OF THE DAY Crédito: AP/Getty/Reuters
Outgoing U.S. President Barack Obama kisses outgoing first lady Michelle Obama's hand as they are escorted by newly inaugurated U.S. President Donald Trump (in red tie) and first lady Melania (L) before the Obama's departure on the Executive One helicopter during Trump's swearing ceremony in Washington, U.S., January 20, 2017. REUTERS/Mike Segar Crédito: AP/Getty/Reuters
U.S. President Donald Trump and first lady Melania Trump see off former U.S. President Barack Obama and his wife Michelle Obama as they depart following Trump's inauguration at the Capitol in Washington, U.S. January 20, 2017. REUTERS/Jonathan Ernst TPX IMAGES OF THE DAY Crédito: AP/Getty/Reuters
Former president Barack Obama (middle) and President Donald Trump share a laugh as former First Lady Michelle Obama (2nd R) looks on following inauguration ceremonies swearing in Trump as the 45th president of the United States in Washington, U.S., January 20, 2017. REUTERS/Mike Segar Crédito: AP/Getty/Reuters
A Marine helicopter carries former president Barack Obama and Michelle Obama from the Capitol Hill in Washington, Friday, Jan. 20, 2017, en route to Andrews Air Force Base, Md. following the presidential inauguration of Donald Trump. (Rob Carr/Pool Photo via AP) Crédito: AP/Getty/Reuters