The White House chief of staff is the head of the Executive Office of the President of the United States, 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...

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.

https://en.wikipedia.org/wiki/White_House_Chief_of_Staff

the White House chief of staff is a kind of a chief operating officer of the country... he’s got to run the government...

https://apnews.com/article/biden-politics-united-states-government-district-of-columbia-mitt-romney-45c2ca5c526467eb29ce39891da60594

Gee, I wonder what we'll find if we look into who has really been running the government these last 4 years? (And the many years before Biden.)

Zients is currently serving as the 31st White House chief of staff... His family is Jewish... On January 22, 2023, it was reported that Zients would replace Ron Klain

https://en.wikipedia.org/wiki/Jeff_Zients

"Klain" huh?

Ronald Alan Klain (born August 8, 1961)[1] is an American attorney, political consultant, and former lobbyist who served as White House chief of staff under President Joe Biden from 2021 to 2023... Klain is Jewish.

https://en.wikipedia.org/wiki/Ron_Klain