Public figures who sue for libel have to demonstrate that the person they claim libeled them did so with "actual malice" (see https://en.wikipedia.org/wiki/Actu

Public figures who sue for libel have to demonstrate that the person they claim libeled them did so with "actual malice" (see https://en.wikipedia.org/wiki/Actual_malice https://en.wikipedia.org/wiki/Actual_malice), which is quite hard to prove as to a certain degree it involves reading their minds. If they're smart enough to avoid sending an email where they cackle about how they're going to twist the truth in order to destroy you, you're going to have a hard time meeting that standard.