Crime writer Don Winslow says writing a novel about cops and cartels involves some pretty serious research. “In researching these books,” says Winslow, “I meet people. I’ve been to the funerals, talked to the cops. I’ve made the sympathy calls!” His newest book, about the NYPD, is The Force. In the Spiel, Trump’s worst tweet yet! Oh boy. Join Slate Plus! Members get bonus segments, exclusive member-only podcasts, and more. Sign up for a free trial today at slate.com/gistplus.Learn more about your ad choices. Visit megaphone.fm/adchoices