[notahacker]

In Britain at least, popular use of the term "post-truth politics" predates Trump's run for power and was widely applied to campaigns run by the left as well. It's really less about whether specific allegations are true and far more about a rhetorical style in which a campaign proactively makes a high volume of brazenly false claims with the apparent purpose of forcing the opposition into rebutting them rather than the more traditional forms of political lies (denying uncomfortable truths, making promises not intended to be kept, stating hypotheses as facts). But yeah, which side tells the most lies has never been particularly high on voters' list of priority, not least because it's very rare for a campaign to be predominantly honest.