Slideshow: The inauguration of Donald Trump

President Barack Obama, first lady Michelle Obama, President-elect Donald Trump and Melania Trump stand at the White House in Washington, Friday, Jan. 20, 2017. (AP Photo/Evan Vucci)

The Presidential motorcade drives on Pennsylvania Avenue to the Capitol for the Inauguration of President-elect Donald Trump, Friday, Jan. 20, 2017, in Washington. (AP Photo/Cliff Owen)

Former President George W. Bush and his wife Laura Bush wave as they arrive on Capitol Hill in Washington, Friday, Jan. 20, 2017, for the presidential inauguration of Donald Trump. (Saul Loeb via AP, Pool)

Former President Bill Clinton and Former Secretary of State Hillary Clinton arrive for the 58th Presidential Inauguration at the U.S. Capitol for President-elect Donald Trump in Washington, Friday, Jan. 20, 2017. (AP Photo/Patrick Semansky)

The children of President-elect Donald Trump arrive during the 58th Presidential Inauguration at the U.S. Capitol in Washington, Friday, Jan. 20, 2017. (AP Photo/Carolyn Kaster)

Former President Jimmy Carter (L-R), Rosalynn Carter, Former President Bill Clinton, Hillary Clinton and Former President George W. Bush wait for the 58th Presidential Inauguration to begin at the U.S. Capitol in Washington, Friday, Jan. 20, 2017. (AP Photo/Andrew Harnik)

President-elect Donald Trump arrives during the 58th Presidential Inauguration at the U.S. Capitol in Washington, Friday, Jan. 20, 2017. (AP Photo/Carolyn Kaster)

President-elect Donald Trump waves with Vice President-elect Mike Pence and his wife Melania Trump before the 58th Presidential Inauguration at the U.S. Capitol in Washington, Friday, Jan. 20, 2017. (AP Photo/Patrick Semansky)

President-elect Donald Trump leans over to talk with Vice President-elect Mike Pence during the 58th Presidential Inauguration at the U.S. Capitol in Washington, Friday, Jan. 20, 2017. (AP Photo/Andrew Harnik)

President-elect Donald Trump pumps his fist as he arrives during the 58th Presidential Inauguration at the U.S. Capitol in Washington, Friday, Jan. 20, 2017. (AP Photo/Andrew Harnik)

Supporters react as President-elect Donald Trump appears for his inauguration, Friday, Jan. 20, 2017, in Washington. (AP Photo/John Minchillo)

Donald Trump is sworn in as the 45th president of the United States as Melania Trump looks on during the 58th Presidential Inauguration at the U.S. Capitol in Washington, Friday, Jan. 20, 2017. (AP Photo/Andrew Harnik)

President Donald Trump speaks after being sworn in as the 45th president of the United States during the 58th Presidential Inauguration at the U.S. Capitol in Washington, Friday, Jan. 20, 2017. (AP Photo/Andrew Harnik)

President Donald Trump talks with former President Barack Obama on Capitol Hill in Washington, Friday, Jan. 20, 2017, after Trump took the presidential oath. (Saul Loeb/Pool Photo via AP)

Former President Barack Obama waves as he boards a Marine helicopter during a departure ceremony on the East Front of the U.S. Capitol in Washington, Friday, Jan. 20, 2017, after President Donald Trump was inaugurated. (AP Photo/Evan Vucci)