On November 23, 2020, Biden made his first national security nominations and appointments, nominating Antony Blinken for Secretary of State, Alejandro Mayorkas for Secretary of Homeland Security, Avril Haines for Director of National Intelligence, Jake Sullivan for National Security Advisor, Linda Thomas-Greenfield for United States Ambassador to the United Nations, and former Secretary of State John Kerry for Special Presidential Envoy for Climate.
Also on November 23, General Services Administrator Emily W. Murphy formally recognized Biden as the apparent winner of the 2020 election and authorized the start of a transition process to the Biden administration.