Jane Mayer of The New Yorker magazine interviewed writer Tony Schwartz at his home about his experiences as Donald Trump’s ghostwriter for “The Art of the Deal.”

It is one of the most enlightening articles you will read about Trump.

Last June, as dusk fell outside Tony Schwartz’s sprawling house, on a leafy back road in Riverdale, New York, he pulled out his laptop and caught up with the day’s big news: Donald J. Trump had declared his candidacy for President. As Schwartz watched a video of the speech, he began to feel personally implicated.

Trump, facing a crowd that had gathered in the lobby of Trump Tower, on Fifth Avenue, laid out his qualifications, saying, “We need a leader that wrote ‘The Art of the Deal.’ ” If that was so, Schwartz thought, then he, not Trump, should be running. Schwartz dashed off a tweet: “Many thanks Donald Trump…