I’ve always found threatening someone I’m trying to win over to my point of view to be an effective tactic. ;p
Leaves no room for misunderstanding doesn't it?!!
The rep can take it any way they choose to. If they choose to discount the message then it may well be their undoing at the ballot box. They best take the p.o.'d voter seriously, especially in this political environment today! Voters are not in the mood for niceties any more!