I have stopped answering the phone when I am home and delete the messages without listening to them once I know it is from someone or some entity wanting my vote next week. It is excessive, to put it mildly. Candiates, propositions, makes no difference, it just pisses me off.
I may not be alone, and perhaps there are people who appreciate getting these types of phone calls. In my case, they have no bearing on how I vote, which really is the key question--how effective are these pre-recorded phone campaigns in persuading voters' choices?
And there also are the mailings. Keeps the paper and printing industries in business, not clear how informative they have been.