ground game
n.β Β«The pairing of White House wannabes with grass-roots activists and local political leadersβa mating dance known in political parlance as the “ground game”βhas a serious purpose. Often a relative handful of activists and party regulars determines the outcome of the early primaries and caucuses, which in turn can either launch or torpedo a presidential bid.Β» ββPresidential candidates court activists” by Holly Ramer, Mike Glover in Concord, New Hampshire mlive.com Nov. 25, 2006. (source: Double-Tongued Dictionary)