@dmitry @ricardoharvin If they only use one tactic to undermine the whole election, then people can point to it and say "see, if they hadn't done *that* then the election would have gone differently".
If they try ten different things, where no individual one on its own is sufficient to change the outcome, but any six would be - then any time discussion focuses on one tactic, they can deflect by saying "oh come now, any effect from that was too small to change the outcome anyway, get over it".