>>Election thieves, like all others, do cost-benefit analyses.
>>Voter fraud is costly with little return. Spreading some juicy lies about your opponent is cheap and effective.
In that case Trump's investigation will be a damp squib and his detractors can call it a misleading claim and add it to their dossier of same.
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1