to go on foot.
to go about speechmaking on politics or other subjects. Originally an Americanism applied to the lowest class of candidates for legislatorial honours, probably because they stood on a stump  to address their audiences. Maybe, also, because their utterances were short and pithy. This latter reason would, however, hardly apply to our representatives of the stump  class, “the Leaguers,” who are, as a rule, as long-winded as they are illogical.