White House Deputy Chief of Staff

The White House deputy chief of staff is officially the top aide to the White House chief of staff, who is the senior aide to the president of the United States. The deputy chief of staff usually has an office in the West Wing and is responsible for ensuring the smooth running of the White House bureaucracy, as well as such other duties as the chief of staff assigns to them. In all recent administrations, there have been multiple deputy chiefs with different duties.
In the second Trump administration, there are five deputy chiefs of staff:

Dan Scavino, deputy chief of staff
Stephen Miller, deputy chief of staff for policy
James Blair, deputy chief of staff for legislative, political, and public affairs
Taylor Budowich, deputy chief of staff for communications, personnel and public liaison and Cabinet secretary
Nick Luna, deputy chief of staff for strategic implementation
Beau Harrison, deputy chief of staff for operations

List of White House deputy chiefs of staff

Deputy Chief of Staff for Operations

Deputy Chief of Staff for Operations

Deputy Chief of Staff for Operations

Principal Deputy Chief of Staff

* Kirstjen Nielsen, 2017
* Jim Carroll, 2017–2018
* Zachary Fuentes, 2018–2019
* Emma Doyle, 2019–2020Deputy Chief of Staff for Operations
* Joe Hagin, 2017–2018
* Dan Walsh, 2018–2019
* Anthony M. Ornato, 2019–2021Deputy Chief of Staff for Policy
* Rick Dearborn, 2017–2018
* Chris Liddell, 2018–2021Deputy Chief of Staff for Implementation
*Katie Walsh, 2017Deputy Chief of Staff for [White House White House Communications Director|Communications Director|Communications]
*Bill Shine, 2018–2019
*Dan Scavino, 2020–2021

Deputy Chief of Staff for Operations

Deputy Chief of Staff

In the NBC television drama [The White House|West Wing (TV series)|The West Wing], the position of White House deputy chief of staff was held by Josh Lyman in the fictional Bartlet administration and Sam Seaborn in the fictional Santos administration.
Chad Lowe portrayed White House deputy chief of staff Reed Pollock, serving under White House chief of staff Tom Lennox and President Wayne Palmer on the television drama 24.
Adan Canto portrayed the White House deputy chief of staff before being promoted to White House chief of staff in the ABC political drama series Designated Survivor.
Kristen Connolly portrayed White House deputy chief of staff Christina Gallagher in House of Cards.