door-knocker
n.— «Then we break up into teams, and it’s into the vans again. Cathy and Olivera, my team leaders, drive us out to a neighborhood that goes by the name of “14D” on our map, and we’re let off with lists of registered Democrats and door-knockers to hang when no one’s home, and off we go, in pairs.» —“Ground-Game Dispatch” by Alan Wade in Fort Lauderdale, Florida American Prospect Nov. 1, 2004. (source: Double-Tongued Dictionary)