The LA Times series of editorials (one wasn't enough) on Trump's lies is mandatory reading. Here's a sample:
"[Trump] is not merely amusing. He is dangerous. His choice of falsehoods and his method of spewing them — often in tweets, as if he spent his days and nights glued to his bedside radio and was periodically set off by some drivel uttered by a talk show host who repeated something he’d read on some fringe blog — are a clue to Trump’s thought processes and perhaps his lack of agency. He gives every indication that he is as much the gullible tool of liars as he is the liar in chief."