Three interrelated communicative issues emerge from recent U.S. political discourse in the wake of Donald Trump’s campaign for and election to the presidency. TRUTH figures prominently in social commentary on language. Semantically, truth relates to applicability conditions for linguistic expressions, which change and can be contested. Pragmatically, truth affects updating participants’ changing public commitments to what the world is like and to their own and others’ future actions. Updating as the speaker wants requires TRUST. Taking speakers as personally credible is (...) heavily tied to social identities and power relations. Experts and other “authorities” are often automatically accorded credibility but sometimes wrongly shielded from criticism. Disdain for expertise fueled Trump’s campaign and the social divides it exploited, continuing during his presidency. Although TRUMPERY (orig., “deceit, fraud”) is not confined to Trump or Trumpists, they are consummate practitioners. Communicative trumpery exploits “confirmation bias,” desires, and assumptions producing beliefs. It also arises from shifting interpretations and is key to evade communicative accountability (“just joking,” “a figure of speech”) or from refusing to engage with other discourse participants. (shrink)