one of enduring legacies of Western Civilization that has come down to use from the Greeks, re-enforced by another 2,000 yrs of Judeo-Christian ethos, is the idea that Truth has intrinsic value in and of itself. That to Trump and the people like him in the GOP, speech is a purely transactional act is a repudiation of all that. They live by a literally pre-historic morality, they are modern barbarians.