E Pluribus Unum is on our great seal and our currency, but Americans need to find it once again in their hearts and souls. Out of many, one. The most current polls may show merely single digits separating Republican Donald Trump and Democrat Hillary Clinton, but break those polls down by different demographics and the gap becomes a chasm. Seen that way, the United States can begin to look like a collection of warring clans, with huge majorities within each cohort supporting one candidate over the other. As this sampling of poll numbers shows, the spreads are yawning, and that's not good for a country in which everyone ultimately is first and foremost an American.So a word of advice: Don't look for aid, comfort and confirmation from people who are just like you. Take a minute to look at voters who differ from you in gender, race, education, age, income and other ways and ask them — yes, actually ask them — why they are backing a different candidate — not to start an argument but to start a discussion. It's too easy to demonize the other side. If you are a Trump supporter, take a second to think hard about why only 1 percent of African-American voters back him. If you support Clinton, stop for a minute to consider why only 34 percent of white men with a college degree do so. Listen to other Americans and remember: Those who live in an echo chamber will hear only themselves.Registered black voters Clinton — 77% Trump — 1%The Economist/YouGov pollRegistered white voters without a college education Trump — 58% Clinton — 33%Washington Post-ABC News pollWomen who are registered to vote Clinton — 58% Trump — 35%Washington Post-ABC News pollWhite men with a college degree Trump — 45% Clinton — 34%Monmouth University poll White women with a college degree Clinton — 57% Trump — 27%Monmouth University poll