<Li> In the ABC television series Designated Survivor, Adan Canto plays White House Chief of Staff Aaron Shore, who assumes the position of chief of staff under newly sworn in President Tom Kirkman, who ascends from his former position of Secretary of Housing and Urban Development, after President Richmond, the vice president and cabinet are killed during a terrorist attack at the State of the Union address . Shore is later replaced by Emily Rhodes (Italia Ricci) as Chief of Staff and subsequently becomes National Security Advisor . </Li> <Li> In Tom Clancy's Ryanverse, Arnie Van Damm is White House Chief of Staff to three presidents, Fowler, Durling and Ryan . </Li>

How powerful is white house chief of staff