Known for his fierce battles with establishment media during his tenure as President Trump’s press secretary, Sean Spicer has returned to the front lines in a tour to promote his new book, and the conflict only seems to have moved to new venues. A popular East Coast warehouse retailer has canceled an event this Saturday, citing “the political climate,” and a heckler stood up at a bookstore event in Manhattan and shouted: “Hey Sean! You’re a real piece of garbage!” As the heckler was being escorted out, Spicer could be heard likening the incident to his daily briefing days at...