Slideshow: Joe Biden, the 46th President of the United States
President Donald Trump gestures to supporters en route to his Mar-a-Lago Florida Resort on Wednesday, Jan. 20, 2021, in West Palm Beach, Fla. (AP Photo/Lynne Sladky)
President Joe Biden and First Lady Jill Biden, walk near the White House during a Presidential Escort to the White House, Wednesday, Jan. 20, 2021 in Washington.(AP Photo/Jose Luis Magana)
President Joe Biden and his wife Jill Biden depart the Capitol after watching a military pass in review ceremony on the East Front of the Capitol at the conclusion of the inauguration ceremonies, in Washington, Wednesday, Jan. 20, 2021. (AP Photo/J. Scott Applewhite)
President Joe Biden and first lady Jill Biden wave as they arrive at the North Portico of the White House, Wednesday, Jan. 20, 2021, in Washington. (AP Photo/Alex Brandon, Pool)
President Joe Biden and his wife Jill Biden watch a military pass in review ceremony on the East Front of the Capitol at the conclusion of the inauguration ceremonies, in Washington, Wednesday, Jan. 20, 2021. (AP Photo/J. Scott Applewhite)
From left, first lady Jill Biden, President Joe Biden, Vice President Kamala Harris and her husband Doug Emhoff stand on the steps of the U.S. Capitol as they participate in Inauguration Day ceremonies, Wednesday, Jan. 20, 2021, in Washington. (AP Photo/Evan Vucci)
Lady Gaga performs the National Anthem as President-elect Joe Biden applauds during the 59th Presidential Inauguration at the U.S. Capitol in Washington, Wednesday, Jan. 20, 2021. (AP Photo/Andrew Harnik)
Jennifer Lopez sings during the 59th Presidential Inauguration at the U.S. Capitol in Washington, Wednesday, Jan. 20, 2021. (AP Photo/Patrick Semansky, Pool)
Vice President-elect Kamala Harris talks with Vice President Mike Pence during the 59th Presidential Inauguration at the U.S. Capitol in Washington, Wednesday, Jan. 20, 2021. (AP Photo/Andrew Harnik)
Former President Bill Clinton and his wife former Secretary of State Hillary Clinton take with former President George W. Bush as they arrive for the 59th Presidential Inauguration at the U.S. Capitol for President-elect Joe Biden in Washington, Wednesday, Jan. 20, 2021. (AP Photo/Andrew Harnik)
Former President Barack Obama arrives for the 59th Presidential Inauguration at the U.S. Capitol for President-elect Joe Biden in Washington, Wednesday, Jan. 20, 2021. (AP Photo/Andrew Harnik)
Former President Bill Clinton and his wife former Secretary of State Hillary Clinton arrive for the 59th Presidential Inauguration at the U.S. Capitol for President-elect Joe Biden in Washington, Wednesday, Jan. 20, 2021. (AP Photo/Andrew Harnik)
President Joe Biden speaks during the 59th Presidential Inauguration at the U.S. Capitol in Washington, Wednesday, Jan. 20, 2021. (AP Photo/Patrick Semansky, Pool)
President Joe Biden speaks during the 59th Presidential Inauguration at the U.S. Capitol in Washington, Wednesday, Jan. 20, 2021.(AP Photo/Patrick Semansky, Pool)
President Joe Biden speaks during the 59th Presidential Inauguration at the U.S. Capitol in Washington, Wednesday, Jan. 20, 2021.(AP Photo/Patrick Semansky, Pool)
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, Wednesday, Jan. 20, 2021. (AP Photo/Andrew Harnik, Pool)
Vice President Kamala Harris and her husband Doug Emhoffl left, and former Vice President Mike Pence and his wife Karen Pence depart the Capitol after the Inauguration of President Joe Biden ceremony on the East Front of the Capitol at the conclusion of the inauguration ceremonies, in Washington, Wednesday, Jan. 20, 2021. (AP Photo/J. Scott Applewhite)
Kamala Harris is sworn in as Vice President by Supreme Court Justice Sonia Sotomayor as her husband Doug Emhoff holds the Bible during the 59th Presidential Inauguration at the U.S. Capitol in Washington, Wednesday, Jan. 20, 2021. (AP Photo/Andrew Harnik, Pool)
Guests and spectators attend the 59th Presidential Inauguration for President Joe Biden at the U.S. Capitol in Washington, Wednesday, Jan. 20, 2021. (AP Photo/Susan Walsh, Pool)
Police work in front of the White House ahead of Inauguration Day ceremonies, Wednesday, Jan. 20, 2021, in Washington. (AP Photo/David J. Phillip)
President Joe Biden pauses as he signs his first executive orders in the Oval Office of the White House on Wednesday, Jan. 20, 2021, in Washington. (AP Photo/Evan Vucci)
President Donald Trump gestures to supporters en route to his Mar-a-Lago Florida Resort on Wednesday, Jan. 20, 2021, in West Palm Beach, Fla. (AP Photo/Lynne Sladky)
President Joe Biden and First Lady Jill Biden, walk near the White House during a Presidential Escort to the White House, Wednesday, Jan. 20, 2021 in Washington.(AP Photo/Jose Luis Magana)
President Joe Biden and his wife Jill Biden depart the Capitol after watching a military pass in review ceremony on the East Front of the Capitol at the conclusion of the inauguration ceremonies, in Washington, Wednesday, Jan. 20, 2021. (AP Photo/J. Scott Applewhite)
President Joe Biden and first lady Jill Biden wave as they arrive at the North Portico of the White House, Wednesday, Jan. 20, 2021, in Washington. (AP Photo/Alex Brandon, Pool)
President Joe Biden and his wife Jill Biden watch a military pass in review ceremony on the East Front of the Capitol at the conclusion of the inauguration ceremonies, in Washington, Wednesday, Jan. 20, 2021. (AP Photo/J. Scott Applewhite)
From left, first lady Jill Biden, President Joe Biden, Vice President Kamala Harris and her husband Doug Emhoff stand on the steps of the U.S. Capitol as they participate in Inauguration Day ceremonies, Wednesday, Jan. 20, 2021, in Washington. (AP Photo/Evan Vucci)
Lady Gaga performs the National Anthem as President-elect Joe Biden applauds during the 59th Presidential Inauguration at the U.S. Capitol in Washington, Wednesday, Jan. 20, 2021. (AP Photo/Andrew Harnik)
Jennifer Lopez sings during the 59th Presidential Inauguration at the U.S. Capitol in Washington, Wednesday, Jan. 20, 2021. (AP Photo/Patrick Semansky, Pool)
Vice President-elect Kamala Harris talks with Vice President Mike Pence during the 59th Presidential Inauguration at the U.S. Capitol in Washington, Wednesday, Jan. 20, 2021. (AP Photo/Andrew Harnik)
Former President Bill Clinton and his wife former Secretary of State Hillary Clinton take with former President George W. Bush as they arrive for the 59th Presidential Inauguration at the U.S. Capitol for President-elect Joe Biden in Washington, Wednesday, Jan. 20, 2021. (AP Photo/Andrew Harnik)
Former President Barack Obama arrives for the 59th Presidential Inauguration at the U.S. Capitol for President-elect Joe Biden in Washington, Wednesday, Jan. 20, 2021. (AP Photo/Andrew Harnik)
Former President Bill Clinton and his wife former Secretary of State Hillary Clinton arrive for the 59th Presidential Inauguration at the U.S. Capitol for President-elect Joe Biden in Washington, Wednesday, Jan. 20, 2021. (AP Photo/Andrew Harnik)
President Joe Biden speaks during the 59th Presidential Inauguration at the U.S. Capitol in Washington, Wednesday, Jan. 20, 2021. (AP Photo/Patrick Semansky, Pool)
President Joe Biden speaks during the 59th Presidential Inauguration at the U.S. Capitol in Washington, Wednesday, Jan. 20, 2021.(AP Photo/Patrick Semansky, Pool)
President Joe Biden speaks during the 59th Presidential Inauguration at the U.S. Capitol in Washington, Wednesday, Jan. 20, 2021.(AP Photo/Patrick Semansky, Pool)
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, Wednesday, Jan. 20, 2021. (AP Photo/Andrew Harnik, Pool)
Vice President Kamala Harris and her husband Doug Emhoffl left, and former Vice President Mike Pence and his wife Karen Pence depart the Capitol after the Inauguration of President Joe Biden ceremony on the East Front of the Capitol at the conclusion of the inauguration ceremonies, in Washington, Wednesday, Jan. 20, 2021. (AP Photo/J. Scott Applewhite)
Kamala Harris is sworn in as Vice President by Supreme Court Justice Sonia Sotomayor as her husband Doug Emhoff holds the Bible during the 59th Presidential Inauguration at the U.S. Capitol in Washington, Wednesday, Jan. 20, 2021. (AP Photo/Andrew Harnik, Pool)
Guests and spectators attend the 59th Presidential Inauguration for President Joe Biden at the U.S. Capitol in Washington, Wednesday, Jan. 20, 2021. (AP Photo/Susan Walsh, Pool)
Police work in front of the White House ahead of Inauguration Day ceremonies, Wednesday, Jan. 20, 2021, in Washington. (AP Photo/David J. Phillip)
President Joe Biden pauses as he signs his first executive orders in the Oval Office of the White House on Wednesday, Jan. 20, 2021, in Washington. (AP Photo/Evan Vucci)