U.S. President-elect Joe Biden reacts during an event at Major Joseph R. "Beau" Biden III National Guard/Reserve Center at New Castle County Airport in New Castle, Delaware, U.S. January 19, 2021. REUTERS/Tom Brenner

U.S. President-elect Joe Biden reacts as he speaks during an event at Major Joseph R. "Beau" Biden III National Guard/Reserve Center at New Castle County Airport in New Castle, Delaware, U.S. January 19, 2021. REUTERS/Tom Brenner

U.S. President-elect Joe Biden speaks during an event at Major Joseph R. "Beau" Biden III National Guard/Reserve Center at New Castle County Airport in New Castle, Delaware, U.S. January 19, 2021. REUTERS/Tom Brenner

U.S. President-elect Joe Biden gestures during an event at Major Joseph R. "Beau" Biden III National Guard/Reserve Center at New Castle County Airport in New Castle, Delaware, U.S. January 19, 2021. REUTERS/Tom Brenner

U.S. President-elect Joe Biden reacts during an event at Major Joseph R. "Beau" Biden III National Guard/Reserve Center at New Castle County Airport in New Castle, Delaware, U.S. January 19, 2021. REUTERS/Tom Brenner

U.S. President-elect Joe Biden reacts during an event at Major Joseph R. "Beau" Biden III National Guard/Reserve Center at New Castle County Airport in New Castle, Delaware, U.S. January 19, 2021. REUTERS/Tom Brenner

Honduran migrants, who were trying to reach the U.S., are sent back by Guatemalan authorities, at El Florido border between Guatemala and Honduras, in Chiquimula, Guatemala, January 19, 2021. REUTERS/Luis Echeverria

Honduran migrants, who were trying to reach the U.S., get out of a military vehicle as they are sent back by Guatemalan authorities, at El Florido border between Guatemala and Honduras, in Chiquimula, Guatemala, January 19, 2021. REUTERS/Luis Echeverria

U.S. President-elect Joe Biden reacts during an event at Major Joseph R. "Beau" Biden III National Guard/Reserve Center at New Castle County Airport in New Castle, Delaware, U.S. January 19, 2021. REUTERS/Tom Brenner

U.S. President-elect Joe Biden arrives to speak during an event at Major Joseph R. "Beau" Biden III National Guard/Reserve Center at New Castle County Airport in New Castle, Delaware, U.S. January 19, 2021. REUTERS/Tom Brenner

A Honduran migrant who was trying to reach the U.S. feeds a child as the migrants are sent back by Guatemalan authorities, at El Florido border between Guatemala and Honduras, in Chiquimula, Guatemala, January 19, 2021. REUTERS/Luis Echeverria

U.S. President-elect Joe Biden arrives to speak during an event at Major Joseph R. "Beau" Biden III National Guard/Reserve Center at New Castle County Airport in New Castle, Delaware, U.S. January 19, 2021. REUTERS/Tom Brenner

Italian Prime Minister Giuseppe Conte attends a debate ahead of a confidence vote at the upper house of parliament after former Prime Minister Matteo Renzi pulled his party out of government, in Rome, Italy, January 19, 2021. REUTERS/Yara Nardi/Pool

Honduran migrants who were trying to reach the U.S. get out of a military vehicle as they are sent back by Guatemalan authorities, at El Florido border between Guatemala and Honduras, in Chiquimula, Guatemala, January 19, 2021. REUTERS/Luis Echeverria

Italy's outgoing Minister of Agriculture Teresa Bellanova speaks ahead of a confidence vote at the upper house of parliament after former Prime Minister Matteo Renzi pulled his party out of government, in Rome, Italy, January 19, 2021. REUTERS/Yara Nardi/Pool

Italia Viva party leader and former Italian Prime Minister Matteo Renzi speaks to Italy's outgoing Minister of Agriculture Teresa Bellanova ahead of a confidence vote at the upper house of parliament, in Rome, Italy, January 19, 2021. REUTERS/Yara Nardi/Pool

Senator Michael Bennet, D-Colo., listens during a Senate Finance Committee hearing for Janet Yellen, of California, President-elect Joe Biden's nominee for Treasury Secretary in Washington, U.S., January 19, 2021. Anna Moneymaker/Pool via REUTERS

Senator Michael Bennet, D-Colo., arrives for a Senate Finance Committee hearing for Janet Yellen, of California, President-elect Joe Biden's nominee for Treasury Secretary in Washington, U.S., January 19, 2021. Anna Moneymaker/Pool via REUTERS

Senator Ben Cardin, D-Md., speaks remotely during a Senate Finance Committee hearing for Janet Yellen, of California, President-elect Joe Biden's nominee for Treasury Secretary in Washington, U.S., January 19, 2021. Anna Moneymaker/Pool via REUTERS

Honduran migrants who were trying to reach the U.S. are sent back by Guatemalan authorities, at El Florido border between Guatemala and Honduras, in Chiquimula, Guatemala, January 19, 2021. REUTERS/Luis Echeverria

Jill Biden, wife of U.S. President-elect Joe Biden, attends an event at Major Joseph R. "Beau" Biden III National Guard/Reserve Center at New Castle County Airport in New Castle, Delaware, U.S. January 19, 2021. REUTERS/Tom Brenner

Jill Biden, wife of U.S. President-elect Joe Biden, attends an event at Major Joseph R. "Beau" Biden III National Guard/Reserve Center at New Castle County Airport in New Castle, Delaware, U.S. January 19, 2021. REUTERS/Tom Brenner

U.S. House Speaker Nancy Pelosi (D-CA) inspects the official platform a day before President-elect Joe Biden's inauguration at the U.S. Capitol in Washington, U.S. January 19, 2021. REUTERS/Jonathan Ernst

U.S. House Speaker Nancy Pelosi (D-CA) inspects the official platform a day before President-elect Joe Biden's inauguration at the U.S. Capitol in Washington, U.S. January 19, 2021. REUTERS/Jonathan Ernst

Honduran migrants who were trying to reach the U.S. get out of a police vehicle as they are sent back by Guatemalan authorities, at El Florido border between Guatemala and Honduras, in Chiquimula, Guatemala, January 19, 2021. REUTERS/Luis Echeverria

U.S. House Speaker Nancy Pelosi (D-CA) inspects the official platform a day before President-elect Joe Biden's inauguration at the U.S. Capitol in Washington, U.S. January 19, 2021. REUTERS/Jonathan Ernst

Honduran migrants who were trying to reach the U.S. are sent back by Guatemalan authorities, at El Florido border between Guatemala and Honduras, in Chiquimula, Guatemala, January 19, 2021. REUTERS/Luis Echeverria

U.S. House Speaker Nancy Pelosi (D-CA) inspects the official platform a day before President-elect Joe Biden's inauguration at the U.S. Capitol in Washington, U.S. January 19, 2021. REUTERS/Jonathan Ernst

Senator Ben Sasse, R-Neb., listens during a Senate Finance Committee hearing for Janet Yellen, of California, President-elect Joe Biden's nominee for Treasury Secretary in Washington, U.S., January 19, 2021. Anna Moneymaker/Pool via REUTERS

Senator Ben Sasse, R-Neb., departs a Senate Finance Committee hearing for Janet Yellen, of California, President-elect Joe Biden's nominee for Treasury Secretary in Washington, U.S., January 19, 2021. Anna Moneymaker/Pool via REUTERS

Senator Ben Sasse, R-Neb., listens during a Senate Finance Committee hearing for Janet Yellen, of California, President-elect Joe Biden's nominee for Treasury Secretary in Washington, U.S., January 19, 2021. Anna Moneymaker/Pool via REUTERS

Senator Ben Sasse, R-Neb., listens during a Senate Finance Committee hearing for Janet Yellen, of California, President-elect Joe Biden's nominee for Treasury Secretary in Washington, U.S., January 19, 2021. Anna Moneymaker/Pool via REUTERS

Members of the National Guard patrol near the U.S. Capitol building ahead of U.S. President-elect Joe Biden's inauguration, in Washington, U.S., January 19, 2021. REUTERS/Andrew Kelly

A member of the National Guard walks near the U.S. Capitol building ahead of U.S. President-elect Joe Biden's inauguration, in Washington, U.S., January 19, 2021. REUTERS/Andrew Kelly

Senator Ben Sasse, R-Neb., attends a Senate Finance Committee hearing for Janet Yellen, of California, President-elect Joe Biden's nominee for Treasury Secretary in Washington, U.S., January 19, 2021. Anna Moneymaker/Pool via REUTERS

Senator Ben Sasse, R-Neb., listens during a Senate Finance Committee hearing for Janet Yellen, of California, President-elect Joe Biden's nominee for Treasury Secretary in Washington, U.S., January 19, 2021. Anna Moneymaker/Pool via REUTERS

Senator Ben Sasse, R-Neb., listens during a Senate Finance Committee hearing for Janet Yellen, of California, President-elect Joe Biden's nominee for Treasury Secretary in Washington, U.S., January 19, 2021. Anna Moneymaker/Pool via REUTERS

Italian Prime Minister Giuseppe Conte attends a debate ahead of a confidence vote at the upper house of parliament after former Prime Minister Matteo Renzi pulled his party out of government, in Rome, Italy, January 19, 2021. REUTERS/Yara Nardi/Pool

Italian Prime Minister Giuseppe Conte gestures as he speaks ahead of a confidence vote at the upper house of parliament after former Prime Minister Matteo Renzi pulled his party out of government, in Rome, Italy, January 19, 2021. REUTERS/Yara Nardi/Pool

Italian Prime Minister Giuseppe Conte attends a debate ahead of a confidence vote at the upper house of parliament after former Prime Minister Matteo Renzi pulled his party out of government, in Rome, Italy, January 19, 2021. REUTERS/Yara Nardi/Pool

Handball - 2021 IHF Handball World Championship - Preliminary Round Group D - Bahrain v D.R. Congo - Cairo Stadium Hall 1, Cairo, Egypt - January 19, 2021 Bahrain players celebrate after the match Pool via REUTERS/Mohamed Abd El Ghany

Handball - 2021 IHF Handball World Championship - Preliminary Round Group D - Bahrain v D.R. Congo - Cairo Stadium Hall 1, Cairo, Egypt - January 19, 2021 D.R. Congo's Gauthier Mvumbi Thierry celebrates with teammates and the Player of the Match award after the match Pool via REUTERS/Mohamed Abd El Ghany

Handball - 2021 IHF Handball World Championship - Preliminary Round Group D - Bahrain v D.R. Congo - Cairo Stadium Hall 1, Cairo, Egypt - January 19, 2021 D.R. Congo's Gauthier Mvumbi Thierry with the Player of the Match award after the match Pool via REUTERS/Mohamed Abd El Ghany

Capitol police officers patrol near the U.S. Capitol building ahead of U.S. President-elect Joe Biden's inauguration, in Washington, U.S., January 19, 2021. REUTERS/Andrew Kelly

Handball - 2021 IHF Handball World Championship - Preliminary Round Group B - Spain v Tunisia - New Capital Sports Hall, Cairo, Egypt - January 19, 2021 Spain players celebrate after the match Pool via REUTERS/Khaled Elfiqi

Members of the National Guard patrol near the U.S. Capitol building ahead of U.S. President-elect Joe Biden's inauguration, in Washington, U.S., January 19, 2021. REUTERS/Andrew Kelly

Senator Liliana Segre attends a debate ahead of a confidence vote at the upper house of parliament after former Prime Minister Matteo Renzi pulled his party out of government, in Rome, Italy, January 19, 2021. REUTERS/Yara Nardi/Pool

Members of the National Guard patrol near the U.S. Capitol building ahead of U.S. President-elect Joe Biden's inauguration, in Washington, U.S., January 19, 2021. REUTERS/Andrew Kelly

Janet Yellen, President-elect Joe Biden's nominee for Secretary of the Treasury, participates remotely in a Senate Finance Committee hearing in Washington, U.S., January 19, 2021. Anna Moneymaker/Pool via REUTERS

Senator Maria Cantwell, D-Wash., listens during a Senate Finance Committee hearing for Janet Yellen, of California, President-elect Joe Biden's nominee for Treasury Secretary in Washington, U.S., January 19, 2021. Anna Moneymaker/Pool via REUTERS

Senator Ben Sasse, R-Neb., speaks on his cell phone after arriving to a Senate Finance Committee hearing for Janet Yellen, of California, President-elect Joe Biden's nominee for Treasury Secretary in Washington, U.S., January 19, 2021. Anna Moneymaker/Pool via REUTERS

A man walks past the Prime Minister's Office, Chigi Palace, in Rome, Italy, January 19, 2021. REUTERS/Remo Casilli

Senator Ben Sasse, R-Neb., checks his cell phone after arriving to a Senate Finance Committee hearing for Janet Yellen, of California, President-elect Joe Biden's nominee for Treasury Secretary in Washington, U.S., January 19, 2021. Anna Moneymaker/Pool via REUTERS

Senator Ben Sasse, R-Neb., speaks on his cell phone after arriving to a Senate Finance Committee hearing for Janet Yellen, of California, President-elect Joe Biden's nominee for Treasury Secretary in Washington, U.S., January 19, 2021. Anna Moneymaker/Pool via REUTERS

A view of the National Mall ahead of the 59th Presidential Inauguration in Washington, DC, U.S. January 19, 2021. Susan Walsh/Pool via REUTERS

A view of the U.S. Capitol ahead of the 59th Presidential Inauguration in Washington, DC, U.S. January 19, 2021. Susan Walsh/Pool via REUTERS

Senator Ben Sasse, R-Neb., arrives to a Senate Finance Committee hearing for Janet Yellen, of California, President-elect Joe Biden's nominee for Treasury Secretary in Washington, U.S., January 19, 2021. Anna Moneymaker/Pool via REUTERS

A view of the National Mall ahead of the 59th Presidential Inauguration in Washington, DC, U.S. January 19, 2021. Susan Walsh/Pool via REUTERS

A view of the National Mall ahead of the 59th Presidential Inauguration in Washington, DC, U.S. January 19, 2021. Susan Walsh/Pool via REUTERS

Handball - 2021 IHF Handball World Championship - Preliminary Round Group D - Bahrain v D.R. Congo - Cairo Stadium Hall 1, Cairo, Egypt - January 19, 2021 Bahrain's Komail Mahfoodh reacts Pool via REUTERS/Mohamed Abd El Ghany

President Clinton holds the leash of his dog Buddy as they run into Socks the cat during a walk on the White House grounds outside the Oval Office. Clinton and Buddy were returning from a surprise birthday party for Education Secretary Richard-Riley.