Ron Klain in the context of "White House Chief of Staff"

The White House chief of staff is the head of the Executive Office of the President of the United States, a 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. James Baker is the only person to hold the office twice or serve under two different presidents.