California Code, Elections Code - ELEC § 20001

(1) The major political parties have become an integral part of the American governmental system requiring regulation as to their structure, governing bodies, and functions by state government in the public interest.

(2) The Legislature has found it necessary and appropriate in the regulation of political parties to create and provide for the convening of state conventions, state central committees, and county central committees for parties qualified by law to participate in the direct primary election, by statute.

(3) Over the several years preceding the adoption of this section organizations of electors using as a part of their names the name of a political party qualified to participate in the direct primary election have endorsed candidates for nomination of that party for partisan office in the direct primary election and have publicized and promulgated the endorsements in a manner that has resulted in considerable public doubt and confusion as to whether the endorsements are those of a private group of citizens or of an official governing body of a political party.

(4) The voting public is entitled to protection by law from deception in political campaigns in the same manner and for the same reasons that it is entitled to protection from deception by advertisers of commercial products.