Pictures: US President Biden’s first year in office

President Joe Biden checks his watch during his marathon news conference. Biden acknowledged Americans' frustration as his first year in office came to an end on Wednesday, but said the United States was on track to meet considerable challenges from the coronavirus pandemic and inflation. "Our work's not done," he told a rare solo White House news conference about the economic and health recovery from the pandemic. The president added that he thought his administration could have done more on COVID testing.

Joe Biden is sworn in as the 46th president of the United States by Chief Justice John Roberts as Jill Biden holds the Bible during the 59th Presidential Inauguration at the U.S. Capitol in Washington, on Jan. 20, 2021, as their children Ashley and Hunter watch.

President Joe Biden signs executive orders in the Oval Office of the White House in Washington, after his inauguration as the 46th President of the United States, January 20, 2021.

President Joe Biden, First Lady Jill Biden, their daughter Ashley Biden and granddaughters Finnegan and Naomi pose for a picture during a celebration of Independence Day, July 4, 2021.

Fireworks are displayed over the White House as part of Inauguration Day ceremonies for President Joe Biden and Vice President Kamala Harris, on Jan. 20, 2021, in Washington.

President Joe Biden laughs with Vice President Kamala Harris and members of Congress as he signs the Juneteenth National Independence Day Act into law as Vice President Kamala Harris stands by in the East Room of the White House, June 17, 2021.

President Joe Biden takes off his mask to speak about the COVID-19 pandemic during a prime-time address from the East Room of the White House, on March 11, 2021, in Washington.

President Joe Biden and Russian President Vladimir Putin, arrive to meet at the 'Villa la Grange', on June 16, 2021, in Geneva, Switzerland.

President Joe Biden attends the opening session of the UN Climate Change Conference (COP26) in Glasgow, Scotland, November 1, 2021.

U.S. President Joe Biden and Vice President Kamala Harris enter Statuary Hall on the first anniversary of the January 6, 2021 attack on the U.S. Capitol by supporters of former President Donald Trump, on Capitol Hill in Washington, U.S., January 6, 2022.

President Joe Biden gestures as he delivers remarks after late-night passage of a $1 trillion infrastructure bill to repair the nation's airports, roads and bridges, at the White House, November 6, 2021.

President Joe Biden speaks with a child as he visits East End Elementary School in North Plainfield, New Jersey, October 25, 2021.

President Joe Biden listens to a question from a member of the media as he delivers remarks about Afghanistan, from the East Room of the White House, August 26, 2021.

President Joe Biden salutes during the dignified transfer of the remains of U.S. military service members who were killed during a suicide bombing at the Hamid Karzai International Airport, at Dover Air Force Base in Dover, Delaware, August 29, 2021.

Kamala Harris bumps fists with President-elect Joe Biden, after she was sworn in as Vice President of the United States, during the inauguration on the West Front of the U.S. Capitol, January 20, 2021.

First lady Jill Biden places her hands on President Joe Biden during the 59th Presidential Inauguration, January 20,

President Joe Biden places a wreath among graves in Section 60 during a visit to pay his respects in Arlington National Cemetery in Arlington, Virginia, April 14, 2021.

President Joe Biden stands to deliver his remarks on the tradition of Easter, next to first lady Jill Biden holding a flower and a person wearing an Easter Bunny costume at the Blue Room Balcony of the White House, April 5, 2021.

President Joe Biden hangs onto the railing with one hand after he stumbled while climbing the steps of Air Force One while departing Washington for travel to Atlanta, Georgia to promote the $1.9 trillion coronavirus aid package known as the American Rescue Plan, at Joint Base Andrews, Maryland, March 19, 2021.

President Joe Biden rides a bike at Cape Henlopen State Park in Rehoboth Beach, Delaware, June 3, 2021.