PUBLIC INTEGRITY ALLIANCE, INC., an Arizona nonprofit membership corporation; Bruce Ash, an individual; Fernando Gonzales, an individual; Ann Holden, an individual; Ken Smalley, an individual, Plaintiffs-Appellants, v. CITY OF TUCSON, a chartered city of the State of Arizona; Jonathan Rothschild, in his capacity as the Mayor of the City of Tucson; Regina Romero, in her capacity as a member of the Tucson City Council; Paul Cunningham, in his capacity as a member of the Tucson City Council; Karin Uhlich, in her capacity as a member of the Tucson City Council; Shirley Scott, in her capacity as a member of the Tucson City Council; Richard Fimbres, in his capacity as a member of the Tucson City Council; Steve Kozachik, in his capacity as a member of the Tucson City Council; Roger Randolph, in his capacity as the Clerk of the City of Tucson, Defendants-Appellees