The prediction is clear: The U.S. presidential campaign is one of the nastiest and divisive in history. Both political parties are working overtime to convince us the opposition is not only bad for the country, but they are immoral people, too.

While most workplaces are safe havens from political discussions, the effect of the high-volume bombardment of toxic “we-them” and “us-they” rhetoric can ooze into daily work. The mind-numbing result: If people don’t think like me they must be stupid. (Or at a minimum, I shouldn’t trust them.)