CA Elec Code Section 9166

If more than one argument for or more than one argument against any county measure is submitted to the county elections official within the time prescribed, the county elections official shall select one of the arguments in favor and one of the arguments against the measure for printing and distribution to the voters. In selecting the argument the county elections official shall give preference and priority in the order named to the arguments of the following:

(a)

The board of supervisors or a member or members of the board.

(b)

The individual voter, or bona fide association of citizens, or combination of voters and associations, who are the bona fide sponsors or proponents of the measure.

(c)

Bona fide associations of citizens.

(d)

Individual voters who are eligible to vote on the measure.