Parleys Canyon Wildlife Crossing over I-80 in Utah

President Donald Trump and First Lady Melania walk out of the White House for the last time.

Donald Trump leaves the White House for the last time as the 45th president.

Vice President-elect Kamala Harris pays tribute to those lost to the COVID-19 pandemic during a solemn ceremony on Tuesday next to the reflecting pool in Washington, D.C. More than 400,000 have died in the pandemic.

Joe Biden will take office Wednesday amid unprecedented crises, as Donald Trump departs Washington on Air Force One for the final time.