campaign advertising, n.All

Campaign advertising (n.) mostly ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠fattens TV networks and consultants; cheap door-to-door canvassing by volunteers is what actually moves votes.