This is the seventh episode of “Unpresidented,” an interesting original video series from The Atlantic exploring a new era in American politics. 'Liberals and conservatives have fundamentally different moral codes, which makes arguing about policy complicated. Many people have found themselves locked in debates with little success in convincing the other. “One reason it’s so hard to reach across the ideological divide is that people tend to present their arguments in a way that appeals to the ethics of their own side, rather than that of their opponents,” says Atlantic writer Olga Khazan in this video. However, there’s a psychological trick that goes a long way to changing peoples minds. . “At the very least, you can avoid making things worse,” says Khazan.'