Which information source do political campaigns have complete control over?which information source do political campaigns have complete control over?which information source do political campaigns have complete control over?which information source do political campaigns have complete control over?which information source do political campaigns have complete control over?which information source do political campaigns have complete control over?which information source do political campaigns have complete control over?which information source do political campaigns have complete control over?which information source do political campaigns have complete control over?