Highlights from U.S. President Donald J. Trump's inauguration

Top pictures as the 45th U.S. president, Donald J. Trump, is sworn into office.

Top pictures as the 45th U.S. president is sworn into office

Donald Trump is sworn in as the 45th president of the United States by Chief Justice John Roberts as his wife, Melania, and son Barron look on during the 58th presidential inauguration at the U.S. Capitol in Washington on Jan. 20, 2017.

Here's a look at highlights from the inauguration.

(Matt Rourke/Associated Press)

Big crowds

Crowds gather in front of the U.S. Capitol. An estimated 900,000 people attended the Washington event.

(Chip Somodevilla/Getty Images)

White House greeting

Outgoing President Barack Obama, right, and Michelle Obama, left, pose with president-elect Donald Trump and wife Melania at the White House prior to the inauguration.

(Kevin Dietsch-Pool/Getty Images) (Kevin Dietsch-Pool/Getty Images)

The Mormon Tabernacle Choir

Members of the Mormon Tabernacle Choir sit in the rain waiting for the swearing-in.

(Carolyn Kaster/Associated Press)

The National Cathedral Choir

Young members of the National Cathedral Choir warm up at the U.S. Capitol.

(Brendan Smialowski/AFP/Getty Images)

Hillary Clinton arrives at the U.S. Capitol

Former Democratic presidential candidate Hillary Clinton greets Michelle Obama as former president Bill Clinton and former president George W. Bush look on.

(Joe Raedle/Getty Images)

A bipartisan selfie

Democratic Senator Amy Klobuchar takes a selfie with Republican Senator John McCain, second right, and Senator Bernie Sanders, right, on the West Front of the U.S. Capitol Building.

(Joe Raedle/Getty Images)

Former president Jimmy Carter, all smiles

Former president Jimmy Carter is all smiles as he arrives with his wife, Rosalynn Carter, arrive.

(Saul Loeb/Associated Press) (The Associated Press)

Trump supporters

Trump supporters gather on the National Mall.

(Shannon Stapleton/Reuters) (REUTERS)

Less enthused

Those less enthusiastic about Trump were also present on the Mall.

(John Minchillo/Associated Press)

Protests on the streets of Washington

Protests on Washington streets occurred during and after the inauguration.

(John Minchillo/Associated Press) (Associated Press)

Presidential motorcade

Obama and Trump's motorcade drives down Pennsylvania Avenue.

(Susan Walsh/Associated Press)

Trump staffers arrive

From left, Trump's White House director of strategic communications, Hope Hicks, senior counselor Steve Bannon and Counselor to the president Kellyanne Conway arrive.

(Win McNamee/Reuters)

Vice-President Mike Pence arrives

U.S. Vice President-elect Mike Pence arrives for his inaguration (as well as that of President-elect Donald Trump's).

(Carlos Barria/Reuters) (REUTERS)

Former president Bush is well-covered

Former president George W. Bush keeps covered in the rain as he sits with his wife.

(Rick Wilking/Reuters)

Jackie Evancho sings the national anthem

Members of the Supreme Court hold their hands over their hearts as Jackie Evancho sings the national anthem.

(Rick Wilking/Reuters)

Trump arrives

President-elect Donald Trump pumps his fist as he arrives for his Presidential Inauguration.

(Patrick Semansky/Associated Press)

Bird's eye view

A bird's-eye view of Trump's arrival on the West Front of the U.S. Capitol.

(Scott Olson/Getty Images)

Pence becomes Vice President

U.S. Vice President Mike Pence takes the oath of office from Supreme Court Justice Clarence Thomas as his wife Karen Pence looks on.

(Drew Angerer/Getty Images)

Trump becomes President

Trump is sworn in as the 45th president of the United States as Melania Trump holds the bible.

(Andrew Harnik/Associated Press)

Trump's family looks on

Trump takes the oath of office as his wife Melania holds the bible and his children Barron, Ivanka, Eric and Tiffany look on. 

(Jim Bourg/Reuters)

Taking it all in

A view of the West Front of the U.S. Capitol building as President Donald Trump takes the oath of office from Supreme Court Chief Justice John Roberts, becoming the 45th president of the United States.

(Alex Wong/Getty Images)