First Family of the United States

The first family of the United States is the family of the president of the United States, who is both head of state and head of government of the United States. Members of the first family consist of the president, the first lady, and any of their children. 
However, other close relatives of the president and first spouse, such as parents, grandchildren, stepchildren, and in-laws etc, may be classified as members of the first family if they reside in the Executive Residence of the White House.
In the United States, the term "first family" in casual reference to the president's immediate family, is most often used by the media and in particular by the White House press. 
Joe Biden, the 46th and current president of the United States and his immediate family is the current first family of the United States since January 20, 2021.
Residence.
The first family is designated to live in the White House as the president's family, as well as for the sake of their protection and safety.
Protection.
The first family is immediately entitled to Secret Service protection as the family of the president. Individually, each member of the first family is designated a Secret Service codename by the United States Secret Service. Used by special agents, these code names uniquely identify members of the first family for their ongoing protection.