In her role as Governor Nelson A. Rockefeller's executive assistant, Ann Whitman maintained a large number of his office files. This series primarily covers the time period surrounding the 1968 Presidential election, when Governor Rockefeller sought the Republican party's presidential nomination. A significant portion of the material deals with the deepening conflict in Vietnam.

This series contains a portion of Governor Nelson A. Rockefeller's political correspondence on state and national issues. The correspondence reflects his role as a national political figure and was filed separately from correspondence generated while serving as Governor of New York.