California Elections Code Section 7157

A holdover member or a nominee member who has been elected to an office under subdivision (a) of Section 7150 at the general election, or following any special election, shall appoint additional voters to membership on this committee, as follows: (a) Governor, Lieutenant Governor, Treasurer, Controller, Attorney General, Secretary of State, United States Senators from California, members of the State Board of Equalization, and Senators, three additional voters, at least one of whom shall be of the opposite sex. (b) Representatives of Congress from California and Members of the Assembly, three additional voters, at least two of whom shall be of the opposite sex. All appointments made pursuant to this section shall be absolute.