The New Jersey Democrat is the first black man elected to the Senate since Barack Obama in 2004.
Photographers and videographers capture the ceremonial swearing-in of Sen. Cory Booker (D-N.J.) in the Old Senate Chamber at the U.S. Capitol in Washington. Booker defeated Republican Steve Lonegan in a special election last week to replace the late Frank R. Lautenberg (D), who died in June.Chip Somodevilla/Getty Images
President Trump and first lady Melania Trump lit the National Christmas Tree for the first time. The program was hosted by television personality Kathie Lee Gifford and actor Dean Cain and featured performances by the Beach Boys, Jack Wagner, Wynonna Judd, Craig Campbell and others.