Biden sworn in as nation's 46th president
Joe Biden has officially become the 46th president of the United States.
Biden took the oath of office just before noon Wednesday during a ceremony at the U.S. Capitol. The presidential oath was administered by U.S. Supreme Court Chief Justice John Roberts.
Biden was sworn in using a Bible that has been in his family since 1893 and was used during his swearing-in as vice president in 2009 and 2013.