Dianne KNOX; William L. Blaylock; Robert A. Conover; Edward L. Dobrowolski, Jr.; Karyn Gil; Thomas Jacob Hass; Patrick Johnson; Jon Jumper, On Behalf of Themselves and the Class They Seek to Represent, Plaintiffs-Appellees, v. CALIFORNIA STATE EMPLOYEES ASSOCIATION, LOCAL 1000, SERVICE EMPLOYEES INTERNATIONAL UNION, AFL-CIO-CLC, Defendant-Appellant, and Steve Westly, Controller, State of California, Defendant