Vanity Fair magazine just ended its third annual “New Establishment Summit” in San Francisco, a three-day conclave bringing together “titans of technology, politics, business, media and the arts for inspiring conversations on the issues and innovations shaping the future.” More accurately, what the magazine’s predominantly liberal readership would deem “inspiring.” At least one of those conversations, between New York magazine writer Frank Rich and purported humorist/Vanity Fair contributing editor Fran Lebowitz, hardly qualifies. Their discussion turned inevitably to the presidential campaign and Lebowitz offered this on how she “knew Trump wouldn’t win” long before the pesky election that actually decides...