The Left has spent the last five years calling Donald Trump a liar, mostly for things that either turned out to be true or else were merely a matter of opinion. I’ve yet to hear anyone point to one thing Trump said that was both a) provably false and b) a matter of real consequence. Meanwhile, the Left lies constantly about consequential matters. It is their modus operendi. Their raison d’etre. Their joie de vivre. And probably a few other foreign phrases, some of which may be unprintable. Never has the Left’s perfidious propensity been more publicly on display than...