While he finds Donald Trump’s popularity unbelievable, Brad Pitt is trying to understand why people are supporting the Republican presidential candidate. “I can’t bring myself to think that Trump will be in charge. In the simplest terms, what brings us together is good, and what separates us is bad,” the 52-year-old actor tells The New York Times’ T Magazine. Pitt quotes the Oscar-winning film “The Big Short” and says, “When things are going wrong and we can’t find the reason for it, we just start creating enemies.” “You gotta understand,” he tells the magazine, “that it’s also in our DNA....