Changes

In the White House the position was first introduced by [[President Eisenhower]] who brought the organizing principal with him from the [[Pentagon]] using the model of the [[Joint Chiefs of Staff]], and has been used by subsequent presidents ever since.<ref>There is no law mandating a president use this structure. Each president is free to organize his operation of the White House any way he sees fit.</ref> Members of Congress and Committees have also adopted the organizing model for their own congressional staffs.

In the White House the position was first introduced by [[President Eisenhower]] who brought the organizing principal with him from the [[Pentagon]] using the model of the [[Joint Chiefs of Staff]], and has been used by subsequent presidents ever since.<ref>There is no law mandating a president use this structure. Each president is free to organize his operation of the White House any way he sees fit.</ref> Members of Congress and Committees have also adopted the organizing model for their own congressional staffs.

In the White House the position is usually appointed by the leader and serves on his behalf, conducting day-to-day duties such as dealing with inquiries from the legislative branch of government.

In the White House the position is usually appointed by the president and serves on his behalf, conducting day-to-day duties such as managing the president's schedule, hiring staff members, filling other positions throughout the administration, limiting access to the president, and coordinating votes and legislation with congressional party leaders and committee  chairmen for the president's legislative agenda.

==See also==

==See also==