INAUGURATION EXPLAINER: Biden's event will be very different

A view down Pennsylvania Avenue shows the security around the Capitol Hill in Washington, Friday, Jan. 15, 2021, ahead of the inauguration of President-elect Joe Biden and Vice President-elect Kamala Harris. Between the still-raging pandemic and suddenly very real threat of violence from supporters of outgoing President Donald Trump, Jan. 20 promises to be one of the most unusual presidential inaugurations in American history. Joe Biden and Kamala Harris will take the oath of office outside the Capitol. (AP Photo/Susan Walsh)

People take photos through the extensive security surrounding the U.S. Capitol in Washington, Friday, Jan. 15, 2021, ahead of the inauguration of President-elect Joe Biden and Vice President-elect Kamala Harris. (AP Photo/Susan Walsh)

Danish Rozario, left, of Silver Spring, Md., wheels the baggage down Pennsylvania Avenue for a guest at the Trump Hotel in Washington, Friday, Jan. 15, 2021, ahead of the inauguration of President-elect Joe Biden and Vice President-elect Kamala Harris.Between the still-raging pandemic and suddenly very real threat of violence from supporters of outgoing President Donald Trump, Jan. 20 promises to be one of the most unusual presidential inaugurations in American history. Joe Biden and Kamala Harris will take the oath of office outside the Capitol. (AP Photo/Susan Walsh)