President-elect Joe Biden formally introduced members of his national security and foreign policy teams during a live address on Tuesday. 

Biden's transition team first revealed the nominees and appointees to national security and foreign policy posts on Monday, including secretary of state, homeland security secretary, director of national intelligence, ambassador to the United Nations, national security adviser and a special presidential envoy for climate.

The president-elect announced:

Antony Blinken for Secretary of State

Alejandro Mayorkas for Secretary of Homeland Security

Avril Haines for Director of National Intelligence

Linda Thomas-Greenfield for U.S. Ambassador to the United Nations

Jake Sullivan as National Security Advisor

John Kerry as Special Presidential Envoy for Climate

If confirmed by the Senate, Haines will be the first woman to serve as director of national intelligence, while Mayorkas would be the first immigrant and Latino secretary in the Department of Homeland Security's history.

 (CBS News contributed to this report.)