White House Chief of Staff applies to jurisdiction United States of America
The White House chief of staff is the head of the Executive Office of the President of the United States and a cabinet position, in the federal government of the United States.
The chief of staff is a political appointee of the president of the United States who does not require Senate confirmation, and who serves at the pleasure of the President. While not a legally required role, all presidents since Harry S. Truman have appointed a chief of staff.
In the administration of Joe Biden, the current chief of staff is Jeff Zients, who succeeded Ron Klain on February 8, 2023. The chief of staff is the most senior political appointee in the White House. 
The position is widely recognized as one of great power and influence, owing to daily contact with the president of the United States and control of the Executive Office of the President of the United States.