Biden was sworn in by the secretary of the Senate Francis R. Valeo at the Delaware Division of the Wilmington Medical Center

Biden was sworn in on January 5, 1973, by the secretary of the Senate Francis R. Valeo at the Delaware Division of the Wilmington Medical Center. Present were his sons Beau (whose leg was still in traction from the automobile accident) and Hunter and other family members. At 30, he was the sixth-youngest senator in U.S. history.