President Donald Trump delivers his inaugural address.
President Barack Obama, first lady Michelle Obama, President-elect Donald Trump and Melania Trump stand at the White House Friday morning.
President Barack Obama speaks with President-elect Donald Trump during inauguration.
President-elect Donald Trump waits to stop out onto the portico for his Presidential Inauguration at the U.S. Capitol.
President-elect Donald Trump arrives at his inauguration at the U.S. Capitol.
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 his wife Hillary Clinton arrive on Capitol Hill for the presidential inauguration of Donald Trump.
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)
President-elect Donald Trump, left, shakes hands with President Barack Obama before the inauguration.
Donald Trump is sworn in as the 45th president of the United States as Melania Trump looks on at the U.S. Capitol Friday.
President Donald Trump delivers his inaugural address.
President Donald Trump waves after being sworn in as the 45th president of the United States during the 58th Presidential Inauguration at the U.S. Capitol in Washington on Friday.
President Donald Trump waves after delivering his inaugural address.
President Trump gives his inaugural address as former President Obama listens at left, on the West Front of the U.S. Capitol. Win McNamee/Pool Photo via AP
President-elect Donald Trump's children, from left, Tiffany, Donald Trump Jr. and Ivanka Trump arrive for the inauguration.
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 Barack Obama waves as he leaves the Oval Office of the White House in Washington Friday morning.
Former President Barack Obama waves as he boards a Marine helicopter during a departure ceremony on the East Front of the U.S. Capitol.
First lady Melania Trump, President Donald Trump, Vice President Mike Pence and his wife Karen wave to former President Barack Obama as he departs in a Marine helicopter on the East Front of the U.S. Capitol.
Former President Jimmy Carter leaves the inauguration on Capitol Hill. Jack Gruber/Pool Photo via AP
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)
President Donald Trump waves as he walks with first lady Melania Trump during the inauguration parade on Pennsylvania Avenue in Washington on Friday.
President Barack Obama and President-elect Donald Trump's motorcade drives down Pennsylvania Avenue towards the U.S. Capitol.
President Trump steps out of his limousine during his inaugural parade on Pennsylvania Avenue outside the White House. Associated Press/Andrew Harnik
President Donald Trump smiles with his son Barron as they view the 58th Presidential Inauguration parade in Washington on Friday.
Vice President Mike Pence assists his wife, Karen Pence, as they leave the Naval Observatory for Friday's inaugural balls.
The Rockettes perform at the Freedom Ball on Friday night at the Washington Convention Center.
President Trump dances with first lady Melania Trump at the Liberty Ball, on Friday night. Associated Press/Alex Brandon
President Donald Trump acknowledges the crowd at the Liberty Ball. Associated Press/Alex Brandon
President Trump speaks at the Freedom Ball on Friday night as first lady Melania Trump listens.
President Trump dances with Melania Trump at the Liberty Ball.